#qr-wrap {
    margin: 50px auto;
    padding: 0 18px;
    max-width: 480px;
    width: 100%;
    border-bottom: 1px solid #eee;
    box-sizing: border-box;
}

textarea {
    margin: 10px auto 20px;
    padding: 15px;
    width: 100%;
    height: 216px;
    line-height: 1.62;
    font-size: 1.62rem;
    border: 1px solid #e0e0e0;
    box-sizing: border-box;
}

textarea:focus {
    border: 1px solid #429ffd;
}

button {
    position: relative;
    display: block;
    margin: auto;
    width: 180px;
    height: 45px;
    line-height: 45px;
    text-align: center;
    font-size: 1.62rem;
    color: #fff;
    background: #429ffd;
    cursor: pointer;
    border-radius: 3px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, .36);
}

button:active {
    top: 1px;
    box-shadow: 0 0px 1px rgba(0, 0, 0, .27);
}

#qr {
    margin: 50px auto;
    padding: 15px;
    width: 180px;
    height: 180px;
    background: #fff;
    border: 1px solid #e0e0e0;
}

#qr canvas {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

#qr-camera {
    margin: 50px auto;
    padding: 0 18px;
    max-width: 480px;
    width: 100%;
    box-sizing: border-box;
}

#result {
    margin: 0 0 20px;
    font-size: 1.62rem;
}

#camera {
    position: relative;
    overflow: hidden;
}

#preview {
    width: 100%;
    height: auto;
}

#camera canvas {
    position: absolute;
    z-index: -999;
}