.sf_margin_center{
    margin: 0 auto;
}


.sf_login_form{
    width: 100%;
    height: auto;
    display: table;
}

.sf_login_form .input_name{
    display: table-cell;
    width: 20%;
    text-align: left;
    box-sizing: border-box;
    font-size: 14px;
    line-height: 40px;
}


.sf_login_form .input_text{
    display: table-cell;
    width: 80%;
    border: 0;
    height: auto;
    box-sizing: border-box;

}

.sf_login_form .input_text  input{
    border: 0;
    width: 100%;
    height: 40px;
    vertical-align: middle;
    background: transparent;
    border-bottom: 1px solid #999;
}

.sf_text_center{
    text-align: center;
}

.sf_fix_bottom{
    position: fixed;
    bottom: 10px;
}

.sf_wd_all{
    width: 100%;
}

.sf_color_fff{
    color: #FFF;
}

.sf_color_666{
    color: #666;
}

.sf_color_666{
    color: #3D3E3F;
}
.sf_btn{
    display: inline-block;
    padding: 5px 10px;
    text-decoration: none;
}


.sf_line_height_10{
    height: 10px;
    width: 100%;
}

.sf_line_height_20{
    height: 20px;
    width: 100%;
}

.sf_select{
    border: 0;
    padding: 10px 0px;
    font-size: 12px;
}

.sf_bg_fff{
    background: #FFF;
}

.img{
    max-width: 100%;
}