/*隐藏头部*/
#top_nav{
display:none
}
 /*目录样式*/
 #sideCatalog a{
   font-size:12px;
   font-weight:normal !important;
 }
 /*目录按钮*/
.category-btn{
  width: 32px;
  height: 32px;
  line-height: 32px;
  display: inline-block;
}
.category-btn i{
  display: inline-block;
  width: 100%;
  height: 100%;
}
.category-btn i::before{
  content: "";
  display: inline-block;
  width: inherit;
  height: inherit;
  background-image: url('https://blog-static.cnblogs.com/files/colorfully/list.ico');
  background-size: cover;
}
/*ul缩进*/
ol li ul{
margin-left:10px !important;
}