/*清除元素默认的内外边距  */

* {
  margin: 0;
  padding: 0;
}

/*让所有斜体 不倾斜*/

em,
i {
  font-style: normal;
}

/*去掉列表前面的小点*/

li {
  list-style: none;
}

/*图片没有边框   去掉图片底侧的空白缝隙*/

img {
  width: 100%;
  height: 100%;
  border: 0;
  /*ie6*/
  vertical-align: middle;
}

/*让button 按钮 变成小手*/

button {
  cursor: pointer;
}

/*取消链接的下划线*/

a {
  color: #000;
  text-decoration: none;
  font-size: 16px;
}

button,
input {
  font-family: 'Microsoft YaHei', 'Heiti SC', tahoma, arial, 'Hiragino Sans GB', \\5b8b\4f53, sans-serif;
  /*取消轮廓线 蓝色的*/
  outline: none;
  border: none;
  cursor: pointer;
}

body {
  background-color: #fff;
  font: 12px/1.5 'Microsoft YaHei', 'Heiti SC', tahoma, arial, 'Hiragino Sans GB', \\5b8b\4f53, sans-serif;
  color: black;
}

/*清除浮动*/

.clearfix:after {
  visibility: hidden;
  clear: both;
  display: block;
  content: '.';
  height: 0;
}

.clearfix {
  *zoom: 1;
}
/* 浮动阴影 */
.show {
  position: absolute;
  bottom: 0;
  left: 0;
  color: #fff;
  height: 40px;
  line-height: 40px;
  font-size: 16px;
  width: 100%;
  padding: 0 5px 0 10px;
  box-sizing: border-box;
  background: -webkit-gradient(linear, left top, left bottom, color-stop(0, transparent), color-stop(100%, rgba(0, 0, 0, 0.8)));
  background: -webkit-linear-gradient(top, transparent 0, rgba(0, 0, 0, 0.8) 100%);
  background: linear-gradient(to bottom, transparent 0, rgba(0, 0, 0, 0.8) 100%);
  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#00000000', endColorstr='#131313', GradientType=0);
}
/* 浮动样式 */
.fl {
  float: left;
}
.fr {
  float: right;
}

/* 回到顶部模块 */
.backtop {
  position: fixed;
  bottom: 5rem;
  left: 50%;
  margin-left: 650px;
  width: 4rem;
  height: 4rem;
  overflow: hidden;
  display: none;
  z-index: 66666;
}
/* 消除google浏览器黄色框  */
input:-webkit-autofill,
input:-webkit-autofill:hover,
input:-webkit-autofill:focus {
  /*背景颜色*/
  box-shadow: 0 0 0 60px #eee inset;
  /*字的颜色*/
  -webkit-text-fill-color: #878787;
  outline: none;
}
/*
* 搜索框提示颜色
*/
input::-webkit-input-placeholder {
  /* color: #fff; */
}
.md10 {
  margin-top: 10px;
}
.md20 {
  margin-top: 20px;
}
.md25 {
  margin-top: 25px;
}
.md30 {
  margin-top: 30px;
}
.md35 {
  margin-top: 35px;
}
.md40 {
  margin-top: 40px;
}
.md80 {
  margin-top: 80px;
}