不影响居中HTML元素的伪元素

为什么不在数字的左侧添加相同的百分比符号?

然后用隐藏此副本 visibility: hidden

这在容器中创建了相等的平衡,数字可以完全居中。

div {
  font-family: sans-serif;
  height: 200px;
  width: 200px;
  background: #ae63e4;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 60px;
  line-height: 1;
  color: white;
  text-align: center;
}
div::after {
  content: '%';
  font-size: 30px;
  margin-bottom: 15px;
}
div::before {
  content: '%';
  font-size: 30px;
  margin-bottom: 15px;
  visibility: hidden;
}
div.a-percent {
  background: #0ebeff;
}

<div class="percent">0</div>
<div class="percent">10</div>
<div class="percent">100</div>

<br>
<br>

<div class="a-percent">0</div>
<div class="a-percent">10</div>
<div class="a-percent">100</div>

更多详细信息和其他选项: Center and right align flexbox elements

div {
  height: 200px; width: 200px;
  background: maroon;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: white;
  &.percent {
    &:after {
      content: '%';
      position: absolute;
  }
}

试试这个:

div {
    font-family: sans-serif;
    height: 200px; width: 200px;
    background: #ae63e4;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 60px;
    line-height: 1;
    color: white;
    text-align: center;
    &.percent {
        &:after {
            content: '%';
            font-size: 30px;
        }
    }
}