* {
    font-family: "微软雅黑";
    font-size: 16px;
    border: 0;
    padding: 0;
    margin: 0;
    color: #666;
    box-sizing: border-box;
    -moz-box-sizing: border-box;
    -webkit-box-sizing: border-box;
}

html, body {
    width: 100%;
}

.bg {
    width: 415px;
    height: 337px;
    background: #fff;
    position: relative;
    position: absolute;
    left: 0px;
    top: 0px;
    right: 0px;
    bottom: 0px;
    margin: auto;
    z-index: 1;
    box-shadow: 0px 0px 50px rgba(0, 0, 0, 0.4);
    border-radius: 15px;
}

.password {
    position: absolute;
    top: 9.5rem;
    right: 3.5rem;
    display: flex;
}

.btn {
    position: absolute;
    top: 15rem;
    right: 3.5rem;
    border: none;
    color: #fff;
    width: 18.825rem;
    text-align: center;
    background-color: #2D456B;
    text-indent: 0rem;
}

.img {
    width: 100%;
    position: absolute;
    left: 0;
    right: 0;
    margin: 0 auto;
    z-index: -1;
}

.wel {
    width: 415px;
    height: 35px;
    color: #2d456b;
    font-size: 1.5rem;
    position: absolute;
    top: 2rem;
    text-align: center;
}

input {
    border-bottom: 0.0625rem solid #2D456B;
    height: 2.5625rem;
    width: 15.8125rem;
    text-indent: 3.125rem;
    outline: none;
}

.user {
    position: absolute;
    top: 6rem;
    right: 3.5rem;
    display: flex;
}

.rem {
    position: absolute;
    top: 12.5rem;
    right: 18.2rem;
    border: none;
    color: #323333;
}

    .rem input {
        width: 0.8125rem;
    }

.fg {
    position: absolute;
    top: 12.5rem;
    right: 3.5rem;
    border: none;
    color: #323333;
}

#yonghu {
    border-bottom: 1px solid #2D456B;
    height: 41px;
    line-height: 41px;
}

#reb {
    margin-top: -33px;
    margin-left: 20px;
    font-size: 11px;
}


@media (min-width:800px) and (max-width:1200px) {
    .bg {
        width: 355px;
        height: 300px;
    }

    .wel {
        width: 355px;
    }

    .user {
        top: 5rem;
        right: 3.5rem;
    }

    .password {
        top: 8rem;
        right: 3.5rem;
    }

    input {
        width: 12rem;
    }

    .rem {
        top: 11rem;
        right: 14.3rem;
    }

    .fg {
        top: 11rem;
        right: 3.5rem;
    }

    .btn {
        top: 14rem;
        width: 15rem;
    }
}