* {
    /*清空内外边距*/
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

em,
i {
    /*文字斜体标签无效果*/
    font-style: normal;
}

li {
    /*去除li的自带原点*/
    list-style: none;
}
img {
    border: 0;
    /*边框清零 图片中线对齐*/
    vertical-align: middle;
}
button,a li {
    /*鼠标变小手*/
    cursor: pointer;
}
a {
    color: #666;
    /*去除下划线*/
    text-decoration: none;
}

a:hover {
    color: red;
}

button,input { font-family: Microsoft YaHei, Heiti SC, tahoma, arial, Hiragino Sans GB, "\5B8B\4F53", sans-serif;
/* 去除灰色边框 */
border: 0;
outline: none;
}
 
body { 
/*让文字放大显示的更加清晰-抗锯齿性*/
-webkit-font-smoothing:antialiased; 
background-color: #fff;font: 12px/1.5 Microsoft YaHei , Heiti SC, tahoma, arial, Hiragino Sans GB, "\5B8B\4F53", sans-serif;
color:#666 }