body {
  padding: 0;
  margin: 0;
  background-color: #FFFFFF;
  box-sizing: border-box;
}
a {
  
  text-decoration: none;
  color: #FFFFFF;
}
h2,
h3,
h4,
h4,
h5 {
  margin: 0;
}
.m_top {
  margin-top: 80px;
}
.f_l {
  float: left;
}
.f_r {
  float: right;
}
.clearfix::after {
  display: block;
  clear: both;
  content: '';
  height: 0;
  visibility: hidden;
}
.main-body {
  width: 1200px;
  margin: auto;
}
/* 一行溢出隐藏 */
.text_ellipsis {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
/* 两行行溢出显示省略号 */
.text_ellipsis_two {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  overflow: hidden;
}