html, body, ul, li, ol, dl, dd, dt, p, h1, h2, h3, h4, h5, h6, form, fieldset, legend, img, a, span {
  margin: 0;
  padding: 0;
  font-family: "SourceHanSansSC-bold";
}

body{
    margin: 0 auto;
    max-width: 1920px;
    min-width: 1240px;
}

fieldset, img, input, button {
  border: none;
  padding: 0;
  margin: 0;
  outline-style: none;
}

ul, ol {
  list-style: none;
}

ul, ol {
list-style: none outside none;}

img {
  border: 0;
}

p{color: rgba(0,0,0,.84);}

a {
  color: #666666;
  text-decoration: none;
  cursor:pointer;
} 

.clearfix:before, .clearfix:after {
  /*清楚浮动*/
  content: "";
  display: table;
}

.clearfix:after {
  clear: both;
}

.clearfix {
  *zoom: 1;
}

.clear {
  clear: both;
  }


  .clearfix::after {
    content: "";
    display: block;
    width: 100%;
    height: 0;
    visibility: hidden;
    clear: both;
  }
  
  nav ul .first-li a {
    background-color: #96ddfd;
}