body {/*login背景颜色定义*/
    background-color: #f1f1f1;
}

.login-wrapper {/*登陆框大小等定义*/
    position: absolute;
    left: 50%;
    top: 50%;
    width: 700px;
    padding: 20px;
    background: url('../img/login-logo.jpg') no-repeat 40px center #fff;
    border-radius: 10px;
    -webkit-transform: translate(-50%, -60%);
       -moz-transform: translate(-50%, -60%);
        -ms-transform: translate(-50%, -60%);
        -o-transform: translate(-50%, -60%);
           transform: translate(-50%, -60%);
    -webkit-box-shadow: 0 0 20px 10px rgba(0, 0, 0, .075);
           -moz-box-shadow: 0 0 20px 10px rgba(0, 0, 0, .075);
           -o-box-shadow: 0 0 20px 10px rgba(0, 0, 0, .075);
              box-shadow: 0 0 20px 10px rgba(0, 0, 0, .075);
}

.login-wrapper-heading {/*login主题文字定义*/
    margin-bottom: 15px;
    font-size: 16px;
    text-align: center;
    letter-spacing: 1px;
}

.login-footer {/*login底部定义*/
    position: absolute;
    width: 100%;
    left: 0;
    bottom: 0;
    text-align: center;
}