.fenlei ul {
  line-height: 0;
  padding: 3% 3.3%;
}

.fenlei li {
  width: 50%;
  float: left;
  text-align: center;
  box-sizing: border-box;
  border-right: 3px #fff solid;
  border-bottom: 3px #fff solid;
}

.fenlei li a {
  width: 100%;
  height: 2.5rem;
  line-height: 2.5rem;
  display: inline-block;
  color: #fff;
  text-align: center;
  background: #0575CF;
}