@media screen and (max-width: 1920px) {
  .content{ width:1200px; margin:0 auto; overflow:hidden;}
  .detail_tittle {
    text-align: center;
    font-size: 1.5em;
    color: #000;
    font-weight: bold;
    padding: 30px 0;
  }
  .detail_tittle div {
    color: #0e9fee;
    font-size: 0.8em;
    margin-top: 20px;
    font-weight: initial;
  }
  .detail_autor {
    text-align: right;
    color: #858585;
    font-size: 1.1em;
    margin-top: 20px;
  }
  .detail_font_size {
    position: relative;
  }
  .detail_font_size_body {
    position: absolute;
    border: 1px solid #dedede;
    border-top: 0;
    display: block;
    top: 38px;
    background: #fff;
    left: -20px;
    width: 50px;
    text-align: center;
    padding: 5px 0;
  }
  .detail_font_size_body span {
    display: block;
    padding: 5px 0;
    margin-right: 0;
  }
}
@media screen and (max-width: 768px) {
 .content{ width:95%;margin:0 auto; overflow:hidden;}
}