页面中常用到的小样式

.i{
  background:red;
  width:40px;
  height:20px;
  position:relative;
  color:white;
}
.i:after{
  content:‘‘;
  position: absolute;
  display: inline-block;
  right: -12px;
  border: 10px solid red;
  border-width: 10px 6px;
  border-right-color: transparent;
  z-index: -1;
}
<div class="i"></div>

.hot {
  position: absolute;
  font-size: 9px;
  line-height: 13px;
  color: #fff;
  height: 13px;
  padding: 1px 4px;
  text-align: center;
  top: 5px;
  white-space: nowrap;
  background-image: linear-gradient(-270deg, #de00e0 0%, #ff3434 96%);
  border-top-left-radius: 6px;
  border-bottom-right-radius: 6px;
}
<div class="hot">HOT</div>

.quan{
  background:linear-gradient(-270deg, #f81818 0%, #ff3434 96%);;
  width:24px;
  height:25px;
  position:relative;
  border-radius:3px;
  color:#fff;
  line-height:25px;
  text-align:center;
  font-size:13px;
}

.quan:before{
  content:‘‘;
  width:3px;
  height:3px;
  background:#fff;
  position:absolute;
  top:50%;
  left:0;
  margin-top:-2px; 
  border-radius:1px;
}

.quan:after{
  content:‘‘;
  width:3px;
  height:3px;
  background:#fff;
  position:absolute;
  top:50%;
  right:0;
  margin-top:-2px;
  border-radius:1px; 
}
<div class="quan">券</div>