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使用css将悬停应用于具有相同类名的所有元素

css html

-1

M.H Mighani · 技术社区 · 7 年前

悬停所以当我把鼠标悬停在左右矩形的每一边 全部的 矩形的两侧位于屏幕顶部,html和css代码如下所示:

<!DOCTYPE html>
<html>
<head>
    <link rel="stylesheet" type="text/css" href="style.css">
</head>
<body>
<div id='container'>
    <div class='right'></div>
    <div class='right'></div>
    <div class='right'></div>
    <div class='right'></div>
    <div class='left'></div> 
    <div class='left'></div> 
    <div class='left'></div> 
    <div class='left'></div> 
</div>
</body>
</html>

css代码:

body{
    margin: 0;
}

#container{
    position: relative;
    background: #D5D8DC;
    height:400px;
    width: 400px;
    margin-top: 100px;
    margin-left: 100px;
}

.right{
    background: #2ECC71;
}

.right:nth-child(1){
    position: absolute;
    height: 80%;
    width: 10%;
    top: 0;
    right: 0;
}

.right:nth-child(2){
    position: absolute;
    height: 10%;
    width: 80%;
    top: 0;
    right: 0;
}

.right:nth-child(3){
    position: absolute;
    height: 80%;
    width: 10%;
    top: 0;
    left: 20%;
    z-index: 10;
}

.right:nth-child(4){
    position: absolute;
    height: 10%;
    width: 80%;
    right: 0;
    bottom: 20%;
}

.left{
    background: #E74C3C;
}

.left:nth-child(5){
    position: absolute;
    height: 10%;
    width: 80%;
    bottom: 0;
    left: 0;
}

.left:nth-child(6){
    position: absolute;
    height: 80%;
    width: 10%;
    bottom: 0;
    left: 0;
}

.left:nth-child(7){
    position: absolute;
    height: 10%;
    width: 80%;
    left: 0;
    top: 20%;
}

.left:nth-child(8){
    position: absolute;
    height: 80%;
    width: 10%;
    bottom: 0;
    right: 20%;
}

.right:hover{
    z-index: 10;
}

.right:hover{z-index:10} 这并不适用于所有人 正确的 侧边,它将z索引应用于鼠标悬停在其上的一侧。。。

注: 我没有使用javascript或更改html代码的权限,我应该通过编写css代码来解决这个问题

2 回复 | 直到 7 年前

Paulie_D 7 年前

根据您的HTML结构,您可以使用同级选择器和直接选择器进行管理,例如:

.right:hover ~ .right,
.right:hover {
  z-index: 10;
}

body {
  margin: 0;
}

#container {
  position: relative;
  background: #D5D8DC;
  height: 100px;
  width: 100px;
  margin-top: 10px;
  margin-left: 10px;
}

.right {
  background: #2ECC71;
}

.right:nth-child(1) {
  position: absolute;
  height: 80%;
  width: 10%;
  top: 0;
  right: 0;
}

.right:nth-child(2) {
  position: absolute;
  height: 10%;
  width: 80%;
  top: 0;
  right: 0;
}

.right:nth-child(3) {
  position: absolute;
  height: 80%;
  width: 10%;
  top: 0;
  left: 20%;
  z-index: 10;
}

.right:nth-child(4) {
  position: absolute;
  height: 10%;
  width: 80%;
  right: 0;
  bottom: 20%;
}

.left {
  background: #E74C3C;
}

.left:nth-child(5) {
  position: absolute;
  height: 10%;
  width: 80%;
  bottom: 0;
  left: 0;
}

.left:nth-child(6) {
  position: absolute;
  height: 80%;
  width: 10%;
  bottom: 0;
  left: 0;
}

.left:nth-child(7) {
  position: absolute;
  height: 10%;
  width: 80%;
  left: 0;
  top: 20%;
}

.left:nth-child(8) {
  position: absolute;
  height: 80%;
  width: 10%;
  bottom: 0;
  right: 20%;
}

.right:hover~.right,
.right:hover {
  z-index: 10;
}

.left:hover~.left,
.left:hover {
  z-index: 10;
}

<div id='container'>
  <div class='right'></div>
  <div class='right'></div>
  <div class='right'></div>
  <div class='right'></div>
  <div class='left'></div>
  <div class='left'></div>
  <div class='left'></div>
  <div class='left'></div>
</div>

Rainbow 7 年前

基于可以使用的其他图元选择其他图元的步骤 ~ + .

~ 是阅读所有css的最佳方法 HERE

现在那些选择器只向下选择,我的意思是,如果你把鼠标悬停在最后一个元素上,上面的元素不会受到影响,因为它只选择前面的元素。

这是一个有效的演示

body {
  margin: 0;
}

#container {
  position: relative;
  background: #D5D8DC;
  height: 400px;
  width: 400px;
}

.right {
  background: #2ECC71;
}

.right:nth-child(1) {
  position: absolute;
  height: 80%;
  width: 10%;
  top: 0;
  right: 0;
}

.right:nth-child(2) {
  position: absolute;
  height: 10%;
  width: 80%;
  top: 0;
  right: 0;
}

.right:nth-child(3) {
  position: absolute;
  height: 80%;
  width: 10%;
  top: 0;
  left: 20%;
  z-index: 10;
}

.right:nth-child(4) {
  position: absolute;
  height: 10%;
  width: 80%;
  right: 0;
  bottom: 20%;
}

.left {
  background: #E74C3C;
}

.left:nth-child(5) {
  position: absolute;
  height: 10%;
  width: 80%;
  bottom: 0;
  left: 0;
}

.left:nth-child(6) {
  position: absolute;
  height: 80%;
  width: 10%;
  bottom: 0;
  left: 0;
}

.left:nth-child(7) {
  position: absolute;
  height: 80%;
  width: 10%;
  right: 20%;
  top: 20%;
}

.left:nth-child(8) {
  position: absolute;
  height: 10%;
  width: 80%;
  top: 20%;
}

.right:hover ~ .right,
.right:hover {
  z-index: 10;
}

.left:hover ~ .left,
.left:hover {
  z-index: 10;
}

<div id='container'>
  <div class='right'></div>
  <div class='right'></div>
  <div class='right'></div>
  <div class='right'></div>
  <div class='left'></div>
  <div class='left'></div>
  <div class='left'></div>
  <div class='left'></div>
</div>