css(attr\currentColor\user-select::selection)

小技巧

1、attr(key)

<p data-unit="元">剩余话费40</p>

[data-unit]:after{
  content: attr(data-unit);
  color: #3b98e0;
}

2、currentColor

<div class="box"> 测试测试 </div>

.box{
  width: 200px;
  height: 200px;
  color: #3b98e0;
  border: 1px solid currentColor;
}

3、user-select

<div id="box-1">test</div>

#box-1{
  -webkit-user-select: none;
  -moz-user-select: none;
  user-select: none;
}

4、::selection

<p id="sel">adfaksdfkalasdf</p>

#sel::selection{
    background:#FE6E66;
    color:#FFF;
}