body {
    margin: auto;
}

#main {
    width: 980px;
    margin-right: auto;
    margin-left: auto;
    padding-right: 10px;
    padding-left: 10px;
}

#nav {
    margin: auto;
    height: 80px;
    width: 1000px;
    line-height: 80px;
    text-indent: 2em;
    color: #0066FF;
    font-weight: 400;
    font-size: 25px;
    font-family: 宋体;
}

#nav1 {
    height: 10px;
    background-color: #6699FF;
}

#img {
    background-position: 0px 0px;
    height: 500px;
    width: 550px;
    background-image: url('../images/left.gif');
    background-repeat: no-repeat;
    float: left;
}

#login {
    border: 1px solid #C0C0C0;
    height: 500px;
    width: 400px;
    float: left;
    margin-top: 5px;
    position: relative;
    left: 20PX;
    font-size: xx-large;
    font-style: normal;
    color: #777;
    font-family: 微软雅黑;
}

.logintable {
    margin: 50px 0px 0px 0px;
    color: #777;
    font-size: 0px 0px 0px 0px;
    color: #777;
    font-size: 16px;
    font-weight: 400;
    font-family: 微软雅黑;
}

    .logintable tr {
        height: 50px;
        line-height: 50px;
    }

        .logintable tr td {
            padding-left: 10px;
        }

.loginbtn {
    border-style: none;
    width: 300px;
    height: 40px;
    background-color: #6699FF;
    color: #FFFFFF;
    font-size: 16px;
    font-weight: 400;
    font-family: 微软雅黑;
}

.logininput {
    float:left;
    border: 1px solid #C0C0C0;
    width: 255px;
    height: 30px;
    line-height: 30px;
}