.cReturnIndex {
      position: fixed;
      left: 10px;
      bottom: 10px;
      border-radius: 50%;
      padding: 10px;
      background-color: lightskyblue;
      opacity:80%;
    }
    .cReturnIndex > a{
      text-decoration: none;
      color: white;
      font-weight: bold;
      font-size: small;
    }
    
    *  {
      user-select: none;
      font-family: Helvetica , "ŸàƒSƒVƒbƒN", sans-serif;
      line-height: 1.7em;
    }
    .cDisplayOff {
      display : none;
    }
    .cTopMargin {
      margin-top : 5px;
    }
    .cContentLinkRow {
      font-weight: bold;
      line-height: 2;
    }
    #iRecommend {
      text-align : center;
      font-size: 12px;
    }