小编Bra*_*Box的帖子

.left,
.right {
  background: #000;
  position: relative;
  height: 100px;
  width: 45%;
  float: left;
  margin-top: 10px;
  opacity: 10%;
}

.right,
.right img {
  margin-left: 0px;
  border-top-right-radius: 10px;
  border-bottom-right-radius: 10px;
}

.left,
.left img {
  border-top-left-radius: 10px;
  border-bottom-left-radius: 10px;
}

.left:after {
  content: '';
  line-height: 0;
  font-size: 0;
  width: 0;
  height: 0;
  border-top: 50px solid transparent;
  border-bottom: 100px solid #fff;
  border-left: 30px solid transparent;
  border-right: 0px solid #fff;
  position: absolute;
  top: -50px;
  right: 0;
}

.right:before,
{
  content: ''; …