/* scroll to top */
#scrollTop div{
  left:0;
  overflow:hidden;
  position:absolute;
  top:0;
  width:149px;
  margin:0;
  padding:0
}
#scrollTop .level-2{
  background:url(https://blog-static.cnblogs.com/files/hafiz/rocket.bmp) no-repeat scroll -149px 0 transparent;
  display:none;
  height:250px;
  opacity:0;
  z-index:1
}
#scrollTop .level-3{
  background:none repeat scroll 0 0 transparent;
  cursor:pointer;
  display:block;
  height:150px;
  z-index:2
}
#scrollTop{
  background:url(https://blog-static.cnblogs.com/files/hafiz/rocket.bmp) no-repeat scroll 0 0 transparent;
  cursor:default;
  display:block;
  height:180px;
  overflow:hidden;
  position:fixed;
  right:0;
  top:90%;
  width:149px;
  z-index:11;
  margin:-125px 0 0;
  padding:0
}

/* font */
.postBody {    
  padding: 0 10px;
  word-spacing: 0;
  word-wrap: break-word;
  text-align: left;
  font-family: Optima-Regular, Optima, PingFangSC-light, PingFangTC-light, "PingFang SC", Cambria, Cochin, Georgia, Times, "Times New Roman", serif;
  line-height: 1.6;
  letter-spacing: 0.034em;
  color: rgba(63, 63, 63, 1);
  font-size: 16px;
}