https://dcpc.nctu.edu.tw/ suck!

SAOE3.stylish.css

@namespace url(http://www.w3.org/1999/xhtml);

@-moz-document domain("dcpc.nctu.edu.tw") {
  html, body {
    height: 100%;
    width: 100%;
  }
  
  body {
    background-image: url(http://i.imgur.com/JIokEO8.jpg) !important;
    background-position: center top;
    background-size: cover;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  
  .aes ,
  #function,
  #main_bg01,
  #main_bg02,
  #main_bg03,
  #login_bg,
  #news_bg,
  #publish_bg01,
  #link,
  #news1,
  #news2,
  #publish,
  #aplus,
  #copyright_box,
  #footer-1,
  #link_bg,
  #download_bg,
  #publish_bg02,
  #footer_bg,
  #search
  {
    display: none;
  }
  #login table tbody tr:nth-child(4n+1) {
    display: none;
  }
  
   #login {
    position: initial;
  }
  
  #login table{
    width: initial;
  }
  #login td {
    text-align: center;
  }
  
  #login input {
    text-align: center;
    margin: 16px auto;
    padding: 10px 60px;
    border: 0px;
    display: inline-block;
    font-size: 20px;
  }
  
  #txtAccount {
    margin-left: -4px !important;
  }
  
  #btnLoginIn {
    background-color: gray;
    color: white;
  }
}