/* 清除内外边距 */
body, h1, h2, h3, h4, h5, h6, hr, p, blockquote, /* structural elements 结构元素 */
 dl, dt, dd, ul, ol, li, /* list elements 列表元素 */
 pre, /* text formatting elements 文本格式元素 */
 fieldset, lengend, button, input, textarea, /* form elements 表单元素 */
 th, td {
  /* table elements 表格元素 */
  margin: 0;
  padding: 0;
}
button,
input,
select,
textarea {
  /* for ie */
  font:
    16px Microsoft YaHei,
    Helvetica,
    Arial,
    "\5b8b\4f53",
    sans-serif;
}
/* 重置列表元素 */
ul,
ol {
  list-style: none;
}
/* 重置文本格式元素 */
a {
  text-decoration: none;
}
a:hover {
  text-decoration: none;
}
fieldset,
img {
  border: 0;
}
input {
  border: none;
  outline: none;
}
/*commom css*/
/*清除浮动*/
.clearfix {
  clear: both;
}
.clearfix:after {
  display: block;
  clear: both;
  content: "";
  visibility: hidden;
  height: 0;
}
/*文本超出显示省略号*/
.ehn,
.otw,
.tow {
  text-overflow: ellipsis;
  overflow: hidden;
  white-space: nowrap;
}
.fr {
  float: right;
}
.fl {
  float: left;
}