* {
  margin: 0;
  padding: 0;
  text-decoration: none;
  list-style: none;
  color: black;
  font-family: 'Source Han Sans CN';
  box-sizing: border-box;
}

html {
  background-color:white;
}

.w {
  width: 1000px;
  margin: 0 auto;
 /* margin-bottom: 10px; */
}

.right {
  float: right;
}

.left {
  float: left;
}

.clearfix::after {
  content: '';
  display: none;
  visibility: hidden;
  height: 0;
  line-height: 0;
  clear: both;
}

.clearfix {
  zoom: 1;
}

.hidden {
  display: none;
  visibility: hidden;
}

.w .newsContent .active {
  display: block;
}