html,body {
    width: 100%;
    height: 100%;
    padding: 0;
    margin: 0 auto;
    min-width: 350px;
    background-image: url("../static/images/theme_bg.jpg");
    background-repeat: no-repeat;
    background-size: 100% 100%;
    -moz-background-size: 100% 100%;
    background-position-y: center;
    background-attachment: fixed;
}

.must-input {
    color: red;
}

.content-wrapper {
    display: block;
    max-width: 1000px;
    /*background: #FFFFFF;*/
    overflow: hidden;
    padding: 20px;
    margin: 0 auto;
}

.content,
.content-value-wrapper,
.btn-qr_code {
    font-size: 17px;
    color: #FAFAFA;
}

.content-title {
    width: 100px;
    float: left;
    margin-right: 10px;
    line-height: 35px;
    font-weight: bolder;
}

.content-value-wrapper {
    width: calc(100% - 110px);
    width: -webkit-calc(100% - 110px);
    width: -moz-calc(100% - 110px);
    float: left;
}

.content-item {
    padding-top: 20px;
    clear: both;
}

.btn-qr_code,
.btn-pay,
.btn-invoice,
.btn-invoice-active {
    width: 100%;
    margin: 20px 0;
    background: #5C5856;
    border: 0;
    border-radius: 3px;
    text-align: center;
    font-size: 16px;
    height: 35px;
    line-height: 35px;
    cursor: pointer;
}