body {
    background: white;
    margin: 0;
    padding: 8px;
    display: flex;
    flex-direction: column;
    align-items: stretch;
}

.content {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-evenly;
    margin-top: 48px;
}

header {
    background-color: #24292e;
    color: white;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 48px;
    display: flex;
    padding: 8px 10px;
    box-sizing: border-box;
}

header > a {
    align-self: center;
    margin-left: 12px;
    color: white;
    text-decoration: none;
}

.qr-right-title {
    flex: 1;
    flex-direction: row-reverse;
    display: flex;
}

svg {
    fill: currentColor;
}

.qr-tips {
    opacity: 0.7;
    font-size: 14px;
    margin-right: 12px;
    align-self: center;
}

.qr-container {
    box-shadow: 0px 2px 3px 0px lightgray, 0px 0px 2px 0px lightgray;
    border-radius: 0px 0px 4px 4px;
    margin: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.qr-input {
    width: 240px;
    height: 40px;
    word-break: break-all;
}

.qr-img {
    height: 200px;
    width: 200px;
    transition: filter ease .5s;
    border-radius: 0px 0px 4px 4px;
    display: flex;
    padding: 20px;
}

.qr-input:focus + .qr-img {
    filter: blur(13px);
}

button.qr-add {
    height: 100px;
    width: 100px;
    font-size: 20px;
}