* {
    box-sizing: border-box;
}

html,
body {
    height: 100%;
    width: 100%;
    padding: 0;
    margin: 0;
    background-color: #ccc;
}

#box {
    margin: 0 auto;
    padding-top: 38px;
    width: 100%;
    max-width: 478px;
    height: 100%;
    background-color: #fff;
    position: relative;
}

#box>input {
    height: 38px;
    padding: 0 64px 0 10px;
    font-size: 14px;
    color: #666;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    background-color: #eee;
    border: none;
    outline: none;
}

#qrcode,
#pcicon {
    position: absolute;
    top: 7px;
    width: 24px;
    height: 24px;
    cursor: pointer;
    background-repeat: no-repeat;
    background-position: center center;
}

#qrcode {
    right: 34px;
    background-image: url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAYAAABzenr0AAAAAXNSR0IArs4c6QAAAONJREFUWEftVsENwjAMdOaBIWCD+ME8iHl4OBuQIeg8RkZFgiiNYzVqS5VIfVQ+ueerfY6DlY9b+fvQCWxTAe/91Tl3AgB5cicycwwh3CRoxX8nzCqAiE8AOCgNOhDRUTBWfA0BFhARTRH8iSOiCd8JdAX+QoFHwQM+BUQiOo9jaMKrCozGcil4wcDM98SIqvEqgSU35D52gaYYIkqPiLO+e0b9BXO8PUemZNVVXp8mTROmFWbeJ3dFKwLF5bSEAp3A/hQweXtmKqpvTNkpsO6CijG0GZHmbC3j29wFLSvUcnUFXifHTDCSFkZQAAAAAElFTkSuQmCC');
    background-size: 24px 24px;
}

#pcicon {
    right: 7px;
    background-image: url('data:image/png;base64,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');
    background-size: 20px 20px;
}

#box>iframe {
    width: 100%;
    height: 100%;
    border: none;
    padding: 0;
    margin: 0;
}

#qrcodeBg {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: #000;
    opacity: .4;
}

#qrcodeContent {
    padding: 10px;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 168px;
    text-align: center;
    font-size: 14px;
    color: #666;
    background-color: #fff;
}

#qrcodeContent img {
    margin-bottom: 5px;
    width: 100%;
    height: 100%;
}