html {
  overflow-y: scroll;
}

body{    overflow: hidden;}
/* 让非ie浏览器默认也显示垂直滚动条，防止因滚动条引起的闪烁 */

body,
div,
p,
span,
a,
img,
dl,
dt,
dd,
ul,
ol,
li,
h1,
h2,
h3,
h4,
h5,
h6,
table,
thead,
tbody,
tr,
td,
th {
  padding: 0;
  margin: 0;
}

body,
button,
input,
select,
textarea {
  /* for ie */
  /*font: 12px/1 Tahoma, Helvetica, Arial, "宋体", sans-serif;*/
  font: 12px/1 "微软雅黑", Tahoma, Helvetica, Arial, sans-serif;
  /* 用 ascii 字符表示，使得在任何编码下都无问题 */
  background: transparent;
}

button,
input,
select,
textarea {
  font-size: 100%;
  /* 使得表单元素在 ie 下能继承字体大小 */
  border: none;
  outline: none;
}

input::-ms-input-placeholder {
  color: #c2c2c2;
}

input::-webkit-input-placeholder {
  /* webkit 浏览器*/
  color: #c2c2c2;
}

input::-moz-placeholder {
  /* 火狐浏览器 */
  color: #c2c2c2;
}

textarea::-ms-input-placeholder {
  color: #c2c2c2;
}

textarea::-webkit-input-placeholder {
  /* webkit 浏览器*/
  color: #c2c2c2;
}

textarea::-moz-placeholder {
  /* 火狐浏览器 */
  color: #c2c2c2;
}

/*  设置input placeholder 样式 */

select {
  appearance: none;
  -moz-appearance: none;
  -webkit-appearance: none;
  cursor: pointer;
}

select::-ms-expand {
  display: none;
}

/*将默认的select选择框样式清除*/


h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: normal;
}

em,
i {
  font-style: normal;
}

ul,
ol {
  list-style: none;
}

a {
  text-decoration: none;
  outline: none;
  color: #7f7f7f;
}

a:visited {
  text-decoration: none;
  outline: none;
}

a:hover {
  text-decoration: none;
  outline: none;
}

a:active {
  text-decoration: none;
  outline: none;
}

a:focus {
  text-decoration: none;
  outline: none;
}

img {
  vertical-align: top;
  border: none;
}

/* 让链接里的 img 无边框  ie会出现*/

label {
  cursor: pointer;
}

/*  label标签鼠标移入后变为手型  */

table {
  border-collapse: collapse;
  /*合并边框*/
  border-spacing: 0;
}

.fl{
  float: left;
}
.fr{
  float: right;
}
.pull-left {
  float: left !important;
}
.pull-right{float: right !important;}
.clearfix:after{
  content:"";
  display: block;
  clear: both;
}
/*清除浮动*/

.beyond_eip{
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow: hidden;
}
/*超出省略*/

.beyond2_eip{
  text-overflow: ellipsis;
  overflow: hidden;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp:2;
}
.beyond3_eip{
  text-overflow: ellipsis;
  overflow: hidden;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp:3;
}
.beyond4_eip{
  text-overflow: ellipsis;
  overflow: hidden;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp:4;
}
/*超出多行省略*/

.ofh{
  overflow: hidden;
}
/*超出隐藏*/

.el_hide {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}
/*  隐藏元素  */

.bg_cover{
  background-position: center;
  -webkit-background-size: cover;
  -moz-background-size: cover;
  background-size: cover;
  background-repeat: no-repeat;
}
/*  背景居中铺满  */

.img_center{
  display: inline-block;
  margin: 0 auto;
}
/*  图片水平居中  */

.sele_none{
  user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  -webkit-user-select: none;
}
/*禁止文字选中*/