*{
    padding: 0;
    border: 0;
    margin:0;
    font-size: 14px;
    font-family: 微软雅黑;
}
input,textarea,select,button,a:focus {
    outline: none;
}
body{
    min-width: 1200px;
    width:100%;
}
ul li{
    list-style: none;
}
a{
    text-decoration: none;
}
.left{
    float: left;
}
.right{
    float: right;
}
.clearfix{
    clear: both;
    overflow: hidden;
}
.clearfix:before,
.clearfix:after {
    display: table;
    content: "";
}
.clearfix:after {
    clear: both;
}
.p_width{
    width:100%;
    min-width: 1200px;
    margin:0 auto;
}
.m_width{
    width: 1200px;
    margin:0 auto;
    padding: 0 50px;
}
.foot_box{
    text-align: center;
    margin: 0 auto;
    color: #fff;
}
.foot_box span{
    margin:0 15px;
}
.foot_box a{
    color: #fff;
}
select{
/*很关键：将默认的select选择框样式清除*/
appearance:none;
-moz-appearance:none;
-webkit-appearance:none;
/*加padding防止文字覆盖*/
border: none;
}
/*清除ie的默认选择框样式清除，隐藏下拉箭头*/
select::-ms-expand { display: none; }