.w {
  width: 1200px;
  margin: 0 auto;
  display: table;
}
/*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 {
  border: 0; /*ie6*/
  vertical-align: middle;
}
/*让button 按钮 变成小手*/
button {
  cursor: pointer;
}
/*取消链接的下划线且修改字体颜色*/
a {
  color: #666;
  text-decoration: none;
}

button,
input {
  font-family: "Microsoft YaHei", "Heiti SC", tahoma, arial, "Hiragino Sans GB", \\5B8B\4F53, sans-serif;
}

body {
  background-color: #fff;
  font: 12px/1.5 "Microsoft YaHei", "Heiti SC", tahoma, arial, "Hiragino Sans GB", \\5B8B\4F53, sans-serif;
  color: #666;
}
/*隐藏元素*/
.hide,
.none {
  display: none;
}
/*清除浮动*/
.clearfix:after {
  visibility: hidden;
  clear: both;
  display: block;
  content: ".";
  height: 0;
}
.clearfix {
  *zoom: 1;
}
/*左浮动*/
.fl {
  float: left;
}
/*右浮动*/
.fr {
  float: right;
}