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4列与引导程序3.3.7不正确对齐

  •  1
  • MK-DK  · 技术社区  · 7 年前

    我正在尝试创建一个包含横幅和4列的网格。示例可以是 seen here .

    行与行之间的空间为10px,但我无法使这些框适合,因此它们在网格中跟随行。当我查看代码时,它对我来说是正确的。所以我想它可能是图片的大小,是要小到。但是改变尺寸并不能解决我的问题。

    有人知道我如何使我的网格元素适合图片的下面几行吗?

    enter image description here

    我的代码: (我删掉了一些与问题无关的HTML代码)

    /* Card and Button */
    
        body {
            background-color: #f5f5f5;
        }
        div { 
            background-color: #fff;
        }
        .index-content a:hover {
          color: black;
          text-decoration: none;
        }
    
        .index-content {
          /*margin-bottom: 20px;*/
          /*padding: 50px 0px;*/
        }
    
        .index-content .row {
          margin-top: 20px;
        }
    
        .index-content a {
          color: black;
        }
    
        .index-content .card {
          background-color: #FFFFFF;
          padding: 0;
          -webkit-border-radius: 4px;
          -moz-border-radius: 4px;
          border-radius: 4px;
          box-shadow: 0 4px 5px 0 rgba(0, 0, 0, 0.14), 0 1px 10px 0 rgba(0, 0, 0, 0.12), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
        }
    
        .index-content .card:hover {
          box-shadow: 0 16px 24px 2px rgba(0, 0, 0, 0.14), 0 6px 30px 5px rgba(0, 0, 0, 0.12), 0 8px 10px -5px rgba(0, 0, 0, 0.3);
          color: black;
        }
    
        .index-content .card img {
          width: 100%;
          border-top-left-radius: 4px;
          border-top-right-radius: 4px;
          height: 350px;
        }
    
        .index-content .card h4 {
          margin: 20px;
        }
    
        .index-content .card p {
          margin: 20px;
          opacity: 0.65;
        }
    
        .index-content .blue-button {
          width: 100px;
          -webkit-transition: background-color 1s, color 1s;
          /* For Safari 3.1 to 6.0 */
          transition: background-color 0.5s, color 0.5s;
          min-height: 20px;
          background-color: #002E5B;
          color: #ffffff;
          border-radius: 4px;
          text-align: center;
          font-weight: lighter;
          margin: 0px 20px 15px 20px;
          padding: 5px 0px;
          display: inline-block;
        }
    
        .index-content .blue-button:hover {
          background-color: #dadada;
          color: #002E5B;
        }
    
        /* Set width between block elements */
        .small-padding.top {
           padding-top:10px;
        }
    
        .small-padding.bottom {
            padding-bottom:10px;
        } 
        .small-padding.left {
            padding-left:5px;
        }
    
        .small-padding.right {
            padding-right:5px;
        }
    
        .row [class*="col-"] {
          padding-left: 5px;
          padding-right: 5px;
        }
    
        /* GRID ELEMENTS MEDIA QUERIES */
    
        @media only screen and (max-width: 768px) {
            .index-content .col-lg-4 {
                margin-top: 20px;
            }
            
            .small-padding.bottom {
            padding-bottom:10px;
            }
        
            div { 
                background-color: #fff;
                padding-left: 2px;
                padding-right: 2px;
            }
            .row [class*="col-"] {
              padding-left: 5px;
              padding-right: 5px;
            }
        }
    
        @media (min-width: 768px) {
            .card {
                position: relative;
            }
            .card-content {
                position: absolute;
                bottom: 0;
                width: 100%;
                background: rgba(0, 0, 0, 0.5);
            }
            .card-content h4,
            .card-content p {
                color: white;
                width: 100%;
                float: left;
                margin: 0 0 5px;
            }
            .card-content a {
                float: right;
            }
            .index-content .card h4,
            .index-content .card p {
                padding: 15px 20px;
                margin: 0;
            }
            .index-content .card p {
                padding: 0 20px 15px;
                margin: 0;
            }
        }
    
        @media (min-width: 991px) {
            .medium-padding.top {
               padding-top:10px;
            }
    
            .medium-padding.bottom {
                padding-bottom:10px;
            } 
            .medium-padding.left {
                padding-left:5px;
            }
    
            .medium-padding.right {
                padding-right:5px;
            }
        }
    <div class="container">
        <!-- Col md 3 - 3 - 3 - 3 + Col sm 6 -6 -->
        <div class="row">
            <div class="col-sm-6 col-md-3 small-padding right bottom">
                <div class="index-content">
                    <div class="card">
                        <img src="https://image.ibb.co/iiWA2T/bmw_1.jpg"></img>
                        <div class="card-content">
                            <h4>BMW NEW MODELS</h4>
                            <a href="#" class="blue-button">Read More</a>
                        </div>
                    </div>
                </div>
            </div>
            <div class="col-sm-6 col-md-3 small-padding bottom left medium-padding right bottom">
                <div class="index-content">
                    <div class="card">
                        <img src="https://image.ibb.co/iiWA2T/bmw_1.jpg"></img>
                        <div class="card-content">
                            <h4>BMW NEW MODELS</h4>
                            <a href="#" class="blue-button">Read More</a>
                        </div>
                    </div>
                </div>
            </div>
            <div class="col-sm-6 col-md-3 small-padding left bottom medium-padding right bottom left">
                <div class="index-content">
                    <div class="card">
                        <img src="https://image.ibb.co/iiWA2T/bmw_1.jpg"></img>
                        <div class="card-content">
                            <h4>BMW NEW MODELS</h4>
                            <a href="#" class="blue-button">Read More</a>
                        </div>
                    </div>
                </div>
            </div>
            <div class="col-sm-6 col-md-3 small-padding left bottom">
                <div class="index-content">
                    <div class="card">
                        <img src="https://image.ibb.co/iiWA2T/bmw_1.jpg" class="img-responsive"></img>
                        <div class="card-content">
                            <h4>BMW NEW MODELS</h4>
                            <a href="#" class="blue-button">Read More</a>
                        </div>
                    </div>
                </div>
            </div>
        </div>
        <div class="row">
        <div class="col-sm-6 small-padding right bottom ">
           <img src="http://placehold.it/600x400" alt="1" class="img-responsive center-block"></img>
        </div>
        <div class="col-sm-6">
            <div class="row">
                <div class="col-xs-6 small-padding right bottom">
                    <img src="http://placehold.it/300x205" alt="2" class="img-responsive"></img>
                </div>
                <div class="col-xs-6 small-padding right left bottom">
                    <img src="http://placehold.it/300x205" alt="3" class="img-responsive"></img>
                </div>
                <div class="col-xs-6 small-padding right bottom">
                    <img src="http://placehold.it/300x205" alt="4" class="img-responsive"></img>
                </div>
                <div class="col-xs-6 small-padding right left bottom">
                    <img src="http://placehold.it/300x205" alt="5" class="img-responsive"></img>
                </div>
            </div>
        </div>
    </div>
    5 回复  |  直到 7 年前
        1
  •  2
  •   Vetrivel Pandiyarajan    7 年前

    请删除您为col编写的所有样式- - 和划船。用这个样式

    .margin_bottom{margin-bottom:10px;}
    .row [class*="col-"]{ padding-left: 5px; padding-right: 5px; }
    .row { margin-left: -5px; margin-right: -5px; }
    

    使用这个HTML代码

    <div class="row">
            <div class="col-sm-6 col-md-3 margin_bottom">
                <div class="index-content">
                    <div class="card">
                        <img src="https://image.ibb.co/iiWA2T/bmw_1.jpg"></img>
                        <div class="card-content">
                            <h4>BMW NEW MODELS</h4>
                            <a href="#" class="blue-button">Read More</a>
                        </div>
                    </div>
                </div>
            </div>
            <div class="col-sm-6 col-md-3 margin_bottom">
                <div class="index-content">
                    <div class="card">
                        <img src="https://image.ibb.co/iiWA2T/bmw_1.jpg"></img>
                        <div class="card-content">
                            <h4>BMW NEW MODELS</h4>
                            <a href="#" class="blue-button">Read More</a>
                        </div>
                    </div>
                </div>
            </div>
            <div class="col-sm-6 col-md-3 margin_bottom">
                <div class="index-content">
                    <div class="card">
                        <img src="https://image.ibb.co/iiWA2T/bmw_1.jpg"></img>
                        <div class="card-content">
                            <h4>BMW NEW MODELS</h4>
                            <a href="#" class="blue-button">Read More</a>
                        </div>
                    </div>
                </div>
            </div>
            <div class="col-sm-6 col-md-3 margin_bottom">
                <div class="index-content">
                    <div class="card">
                        <img src="https://image.ibb.co/iiWA2T/bmw_1.jpg" class="img-responsive"></img>
                        <div class="card-content">
                            <h4>BMW NEW MODELS</h4>
                            <a href="#" class="blue-button">Read More</a>
                        </div>
                    </div>
                </div>
            </div>
        </div>
        <div class="row">
            <div class="col-sm-6 margin_bottom">
               <img src="http://placehold.it/600x400" alt="1" class="img-responsive center-block"></img>
            </div>
            <div class=" col-sm-6">
                <div class="row">
                <div class="col-xs-6 margin_bottom">
                    <img src="http://placehold.it/300x205" alt="2" class="img-responsive"></img>
                </div>
                <div class="col-xs-6 margin_bottom">
                    <img src="http://placehold.it/300x205" alt="3" class="img-responsive"></img>
                </div>
                <div class="col-xs-6 margin_bottom">
                    <img src="http://placehold.it/300x205" alt="4" class="img-responsive"></img>
                </div>
                <div class="col-xs-6 margin_bottom">
                    <img src="http://placehold.it/300x205" alt="5" class="img-responsive"></img>
                </div>
                </div>
            </div>
        </div>
    

    输出:

    enter image description here

        2
  •  4
  •   Vetrivel Pandiyarajan    7 年前

    请不要将类“col-”与类“row”用于同一元素。

    这样地。

    <div class="row col-sm-6"> 
    

    因为类名“row”的右边距为-15px;左边距为-15px;如果使用类名“col-”,它将影响具有padding right:15px;padding left:15px的行样式;

    这是导致这个问题的主要原因,请再添加一个DIV结构,如下所示

    <div class="col-sm-6"> 
         <div class="row"> 
    
         </div>
    </div>
    

    输出:

    enter image description here

        3
  •  2
  •   Mihai T    7 年前

    您的代码有很多问题。

    其中之一是使用BS3而不是4。BS3正在使用 float 这是个坏习惯。请使用带弹性的BS4。一切都容易多了。

    另一个是在同一个元素上使用两个完全不同的类。 row col- 不应在同一个元素上使用。在您的情况下,您需要列内的行。

    我在你的HTML中修改了这个,并在文件的顶部添加了一些CSS。这将帮助你实现你想要的。

    我再次强调你应该使用BS4。

    /* Card and Button */
        .row.mx-0 {
          margin-left:0;
          margin-right:0;
        }
        .row .col-sm-6.no-padding {
          padding-right:0;
          padding-left:0;
        }
        .row .col-sm-6.no-bottom {
        padding-bottom:0;
        }
        body {
            background-color: #f5f5f5;
        }
        div { 
            background-color: #fff;
        }
        .index-content a:hover {
          color: black;
          text-decoration: none;
        }
    
        .index-content {
          /*margin-bottom: 20px;*/
          /*padding: 50px 0px;*/
        }
    
        .index-content .row {
          margin-top: 20px;
        }
    
        .index-content a {
          color: black;
        }
    
        .index-content .card {
          background-color: #FFFFFF;
          padding: 0;
          -webkit-border-radius: 4px;
          -moz-border-radius: 4px;
          border-radius: 4px;
          box-shadow: 0 4px 5px 0 rgba(0, 0, 0, 0.14), 0 1px 10px 0 rgba(0, 0, 0, 0.12), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
        }
    
        .index-content .card:hover {
          box-shadow: 0 16px 24px 2px rgba(0, 0, 0, 0.14), 0 6px 30px 5px rgba(0, 0, 0, 0.12), 0 8px 10px -5px rgba(0, 0, 0, 0.3);
          color: black;
        }
    
        .index-content .card img {
          width: 100%;
          border-top-left-radius: 4px;
          border-top-right-radius: 4px;
          height: 350px;
        }
    
        .index-content .card h4 {
          margin: 20px;
        }
    
        .index-content .card p {
          margin: 20px;
          opacity: 0.65;
        }
    
        .index-content .blue-button {
          width: 100px;
          -webkit-transition: background-color 1s, color 1s;
          /* For Safari 3.1 to 6.0 */
          transition: background-color 0.5s, color 0.5s;
          min-height: 20px;
          background-color: #002E5B;
          color: #ffffff;
          border-radius: 4px;
          text-align: center;
          font-weight: lighter;
          margin: 0px 20px 15px 20px;
          padding: 5px 0px;
          display: inline-block;
        }
    
        .index-content .blue-button:hover {
          background-color: #dadada;
          color: #002E5B;
        }
    
        /* Set width between block elements */
        .small-padding.top {
           padding-top:10px;
        }
    
        .small-padding.bottom {
            padding-bottom:10px;
        } 
        .small-padding.left {
            padding-left:5px;
        }
    
        .small-padding.right {
            padding-right:5px;
        }
    
        .row [class*="col-"] {
          padding-left: 5px;
          padding-right: 5px;
        }
    
        /* GRID ELEMENTS MEDIA QUERIES */
    
        @media only screen and (max-width: 768px) {
            .index-content .col-lg-4 {
                margin-top: 20px;
            }
            
            .small-padding.bottom {
            padding-bottom:10px;
            }
        
            div { 
                background-color: #fff;
                padding-left: 2px;
                padding-right: 2px;
            }
            .row [class*="col-"] {
              padding-left: 5px;
              padding-right: 5px;
            }
        }
    
        @media (min-width: 768px) {
            .card {
                position: relative;
            }
            .card-content {
                position: absolute;
                bottom: 0;
                width: 100%;
                background: rgba(0, 0, 0, 0.5);
            }
            .card-content h4,
            .card-content p {
                color: white;
                width: 100%;
                float: left;
                margin: 0 0 5px;
            }
            .card-content a {
                float: right;
            }
            .index-content .card h4,
            .index-content .card p {
                padding: 15px 20px;
                margin: 0;
            }
            .index-content .card p {
                padding: 0 20px 15px;
                margin: 0;
            }
        }
    
        @media (min-width: 991px) {
            .medium-padding.top {
               padding-top:10px;
            }
    
            .medium-padding.bottom {
                padding-bottom:10px;
            } 
            .medium-padding.left {
                padding-left:5px;
            }
    
            .medium-padding.right {
                padding-right:5px;
            }
        }
    <link href="https://netdna.bootstrapcdn.com/bootstrap/3.0.0/css/bootstrap.min.css" rel="stylesheet"/>
    <div class="container">
        <!-- Col md 3 - 3 - 3 - 3 + Col sm 6 -6 -->
        <div class="row">
            <div class="col-sm-6 col-md-3 small-padding right bottom">
                <div class="index-content">
                    <div class="card">
                        <img src="https://image.ibb.co/iiWA2T/bmw_1.jpg"></img>
                        <div class="card-content">
                            <h4>BMW NEW MODELS</h4>
                            <a href="#" class="blue-button">Read More</a>
                        </div>
                    </div>
                </div>
            </div>
            <div class="col-sm-6 col-md-3 small-padding bottom left medium-padding right bottom">
                <div class="index-content">
                    <div class="card">
                        <img src="https://image.ibb.co/iiWA2T/bmw_1.jpg"></img>
                        <div class="card-content">
                            <h4>BMW NEW MODELS</h4>
                            <a href="#" class="blue-button">Read More</a>
                        </div>
                    </div>
                </div>
            </div>
            <div class="col-sm-6 col-md-3 small-padding left bottom medium-padding right bottom left">
                <div class="index-content">
                    <div class="card">
                        <img src="https://image.ibb.co/iiWA2T/bmw_1.jpg"></img>
                        <div class="card-content">
                            <h4>BMW NEW MODELS</h4>
                            <a href="#" class="blue-button">Read More</a>
                        </div>
                    </div>
                </div>
            </div>
            <div class="col-sm-6 col-md-3 small-padding left bottom">
                <div class="index-content">
                    <div class="card">
                        <img src="https://image.ibb.co/iiWA2T/bmw_1.jpg" class="img-responsive"></img>
                        <div class="card-content">
                            <h4>BMW NEW MODELS</h4>
                            <a href="#" class="blue-button">Read More</a>
                        </div>
                    </div>
                </div>
            </div>
        </div>
        <div class="row">
            <div class="col-sm-6 small-padding right bottom no-bottom">
               <img src="http://placehold.it/600x400" alt="1" class="img-responsive center-block"></img>
            </div>
            <div class="col-sm-6 no-padding">
            <div class="row mx-0">
                <div class="col-xs-6 small-padding right bottom">
                    <img src="http://placehold.it/300x205" alt="2" class="img-responsive"></img>
                </div>
                <div class="col-xs-6 small-padding right left bottom">
                    <img src="http://placehold.it/300x205" alt="3" class="img-responsive"></img>
                </div>
                <div class="col-xs-6 small-padding right bottom">
                    <img src="http://placehold.it/300x205" alt="4" class="img-responsive"></img>
                </div>
                <div class="col-xs-6 small-padding right left bottom">
                    <img src="http://placehold.it/300x205" alt="5" class="img-responsive"></img>
                </div>
                </div>
            </div>
        </div>
    </div>
        4
  •  0
  •   Girisha C    7 年前

    @MK-DK请不要使用 row col 若要在一个分区中获取她,请检查下面的示例,以获取对HTML和CSS进行细微更改的工作修复。

    /* Card and Button */
    
    .row.mx-0 {
      margin-left: 0;
      margin-right: 0;
    }
    
    .row .col-sm-6.no-padding {
      padding-right: 0;
      padding-left: 0;
    }
    
    .row .col-sm-6.no-bottom {
      padding-bottom: 0;
    }
    
    body {
      background-color: #f5f5f5;
    }
    
    div {
      background-color: #fff;
    }
    
    .index-content a:hover {
      color: black;
      text-decoration: none;
    }
    
    .index-content .row {
      margin-top: 20px;
    }
    
    .index-content a {
      color: black;
    }
    
    .index-content .card {
      background-color: #FFFFFF;
      padding: 0;
      -webkit-border-radius: 4px;
      -moz-border-radius: 4px;
      border-radius: 4px;
      box-shadow: 0 4px 5px 0 rgba(0, 0, 0, 0.14), 0 1px 10px 0 rgba(0, 0, 0, 0.12), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
    }
    
    .index-content .card:hover {
      box-shadow: 0 16px 24px 2px rgba(0, 0, 0, 0.14), 0 6px 30px 5px rgba(0, 0, 0, 0.12), 0 8px 10px -5px rgba(0, 0, 0, 0.3);
      color: black;
    }
    
    .index-content .card img {
      width: 100%;
      border-top-left-radius: 4px;
      border-top-right-radius: 4px;
      height: 350px;
    }
    
    .index-content .card h4 {
      margin: 20px;
    }
    
    .index-content .card p {
      margin: 20px;
      opacity: 0.65;
    }
    
    .index-content .blue-button {
      width: 100px;
      -webkit-transition: background-color 1s, color 1s;
      /* For Safari 3.1 to 6.0 */
      transition: background-color 0.5s, color 0.5s;
      min-height: 20px;
      background-color: #002E5B;
      color: #ffffff;
      border-radius: 4px;
      text-align: center;
      font-weight: lighter;
      margin: 0px 20px 15px 20px;
      padding: 5px 0px;
      display: inline-block;
    }
    
    .index-content .blue-button:hover {
      background-color: #dadada;
      color: #002E5B;
    }
    
    /* Set width between block elements */
    
    .small-padding.top {
      padding-top: 10px;
    }
    
    .small-padding.bottom {
      padding-bottom: 10px;
    }
    
    .small-padding.left {
      padding-left: 5px;
    }
    
    .small-padding.right {
      padding-right: 5px;
    }
    
    .row [class*="col-"] {
      padding-left: 5px;
      padding-right: 5px;
    }
    
    /* GRID ELEMENTS MEDIA QUERIES */
    
    @media only screen and (max-width: 768px) {
      .index-content .col-lg-4 {
        margin-top: 20px;
      }
    
      .small-padding.bottom {
        padding-bottom: 10px;
      }
    
      div {
        background-color: #fff;
        padding-left: 2px;
        padding-right: 2px;
      }
      .row [class*="col-"] {
        padding-left: 5px;
        padding-right: 5px;
      }
    }
    
    @media (min-width: 768px) {
      .card {
        position: relative;
      }
      .card-content {
        position: absolute;
        bottom: 0;
        width: 100%;
        background: rgba(0, 0, 0, 0.5);
      }
      .card-content h4,
      .card-content p {
        color: white;
        width: 100%;
        float: left;
        margin: 0 0 5px;
      }
      .card-content a {
        float: right;
      }
      .index-content .card h4,
      .index-content .card p {
        padding: 15px 20px;
        margin: 0;
      }
      .index-content .card p {
        padding: 0 20px 15px;
        margin: 0;
      }
    }
    
    @media (min-width: 991px) {
      .medium-padding.top {
        padding-top: 10px;
      }
    
      .medium-padding.bottom {
        padding-bottom: 10px;
      }
      .medium-padding.left {
        padding-left: 5px;
      }
    
      .medium-padding.right {
        padding-right: 5px;
      }
    }
    
    /* Custom css added to fix the margin */
    @media (min-width: 768px) {
      .row-small-gutters {
        margin: 0 -5px !important
      }
    }
    <link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet"/>
    
    <div class="container">
      <!-- Col md 3 - 3 - 3 - 3 + Col sm 6 -6 -->
      <div class="row">
        <div class="col-sm-6 col-md-3 small-padding right bottom">
          <div class="index-content">
            <div class="card">
              <img src="https://image.ibb.co/iiWA2T/bmw_1.jpg">
              <div class="card-content">
                <h4>BMW NEW MODELS</h4>
                <a href="#" class="blue-button">Read More</a>
              </div>
            </div>
          </div>
        </div>
        <div class="col-sm-6 col-md-3 small-padding bottom left medium-padding right bottom">
          <div class="index-content">
            <div class="card">
              <img src="https://image.ibb.co/iiWA2T/bmw_1.jpg">
              <div class="card-content">
                <h4>BMW NEW MODELS</h4>
                <a href="#" class="blue-button">Read More</a>
              </div>
            </div>
          </div>
        </div>
        <div class="col-sm-6 col-md-3 small-padding left bottom medium-padding right bottom left">
          <div class="index-content">
            <div class="card">
              <img src="https://image.ibb.co/iiWA2T/bmw_1.jpg">
              <div class="card-content">
                <h4>BMW NEW MODELS</h4>
                <a href="#" class="blue-button">Read More</a>
              </div>
            </div>
          </div>
        </div>
        <div class="col-sm-6 col-md-3 small-padding left bottom">
          <div class="index-content">
            <div class="card">
              <img src="https://image.ibb.co/iiWA2T/bmw_1.jpg" class="img-responsive">
              <div class="card-content">
                <h4>BMW NEW MODELS</h4>
                <a href="#" class="blue-button">Read More</a>
              </div>
            </div>
          </div>
        </div>
      </div>
      <div class="row">
        <div class="col-sm-6 small-padding right bottom ">
          <img src="http://placehold.it/600x400" alt="1" class="img-responsive center-block">
        </div>
        <div class="col-sm-6">
          <div class="row row-small-gutters">
            <div class="col-xs-6 small-padding right bottom">
              <img src="http://placehold.it/300x205" alt="2" class="img-responsive">
            </div>
            <div class="col-xs-6 small-padding right left bottom">
              <img src="http://placehold.it/300x205" alt="3" class="img-responsive">
            </div>
            <div class="col-xs-6 small-padding right bottom">
              <img src="http://placehold.it/300x205" alt="4" class="img-responsive">
            </div>
            <div class="col-xs-6 small-padding right left bottom">
              <img src="http://placehold.it/300x205" alt="5" class="img-responsive">
            </div>
          </div>
        </div>
      </div>
    </div>
        5
  •  0
  •   Gagan Sharma    7 年前

    你的HTML结构应该是

    <div class="container">
      <div class="row">
        <div class="col-sm-6"><img/></div>
        <div class="col-sm-6">
          <div class="row">
            <div class="col-sm-6"><img/></div>
            <div class="col-sm-6"><img/></div>
            <div class="col-sm-6"><img/></div>
            <div class="col-sm-6"><img/></div>
          </div>
        </div>
      </div>
    </div>
    这是抢劫密码 https://plnkr.co/edit/KbUTxzDRvnQjNYsH4wpm?p=preview