项目开发前准备——清除默认样式

清除默认样式代码：

   

@charset "utf-8";
html,body,ul,li,ol,dl,dd,dt,p,h1,h2,h3,h4,h5,h6,form,fieldset,legend,img,input{
    margin:0;
    padding:0;
}
body{
    font-size:16px;
    font-family: "微软雅黑";
}
h1,h2,h3,h4,h5,h6{
    font-size:16px;
    font-weight: normal;
}
ul,ol,li{
    list-style:none;
}
em,i{
    font-style: normal;
}
b,strong{
    font-weight: normal;
}
a,u{
    text-decoration: none;
}
img{
    border:0;
}
input{
    outline: none;
}
input{
    border: 0;
    background-color:transparent;
    outline: none;
    margin: 0;
}
/* 公共样式 */
.border_none{
    border:none!important;
}
.border-left_none{
    border-left:none!important;
}
.border-right_none{
    border-right:none!important;
}
.float_left{
    float:left;
}
.float_right{
    float:right;
}
.margin-right0{
    margin-right: 0!important;
}
.bg_none{
    background:none!important;/*清除背景*/
}
.clear_fix:after{
    content:".";
    clear:both;
    display:block;
    height:0;
    overflow:hidden;
    visibility: hidden;
}