CSS实现button按钮的点击效果_按钮点击效果 css

需求

如下图所示，如果我们要实现这样的按钮点击效果，用CSS怎样去实现呢？

实现

个人方法是通过伪元素before结合button的伪类active来实现，上代码：

HTML:

<button class="primary-btn">主要按钮</button>
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CSS:

.primary-btn {
  font-size: 14px;
  color: #fff;
  height: 44px;
  padding: 0 15px;
  background-color: #07c160;
  border: 1px solid #07c160;
  line-height: 1.2;
  text-align: center;
  border-radius: 2px;
  cursor: pointer;
  transition: opacity 0.2s;
  outline: none;
  position: relative;
}
.primary-btn::before {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 100%;
  height: 100%;
  background-color: #000;
  border: inherit;
  border-color: #000;
  border-radius: inherit;
  transform: translate(-50%, -50%);
  opacity: 0;
  content: ' ';
}
.primary-btn:active::before {
  opacity: 0.1;
}
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