input[type="color"] {
    width: 5em;
    height: 5em;
}

button.reset {
    width: 5em;
    height: 5em;
}

.controls {
    display: flex;
    vertical-align: middle;
}

label {
    margin: auto .25em auto 1em;
}

.keyboard-layout {
    user-select: none;
    display: flex;
    flex-direction: column;
    font-family: monospace;
    background-color: black;
    color: white;
    font-weight: 900;
    min-width: 50em;
}

.keyboard-layout .row {
    display: table;
}

.keyboard-layout .key {
    box-sizing: border-box;
    padding: .5em;
    display: table-cell;
    width: 3em;
    height: 3em;
    text-align: center;
    vertical-align: middle;
}

.keyboard-layout .key.selected {
    border: 2px dashed blue
}