*{
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}
.body{
    text-align: center;
    margin: 0 auto;
}
/*login开始*/
.login_bg{
    width: 100%;
    height: 720px;
    background-image: url("../images/login_bg.jpg");
    background-size: cover;
    background-position: top center;
    background-repeat: no-repeat;
    overflow: hidden;
    text-align: center;
}

.box{ width: 490px; margin: 100px auto 0;}
.toreg{ color:#FFF; font-size: 16px;}
.toreg a{ color: #00fffc;}
.row{ margin: 30px 0; height: 35px; line-height: 35px;}
.row label{ float: left; width: 100px; color: #FFF; text-align: right; margin-right: 10px; height: 35px;}
.row input.tex{ float: left; width: 300px; background: none; height: 40px; line-height: 40px; padding: 8px; border: 1px solid #4d5c90; color: #FFF; font-size: 14px;}
.row img.code-img{ float: left; height: 40px; width: 128px; margin-left: 3px;}
.row .btn{ width: 302px; height: 35px; float: left; background: #FFF; border: 0; cursor: pointer; font-size: 15px;}