.panel {
    padding: 3px 2px;
}

a.light {
    color: cyan;
    text-decoration: none;
    font-weight: bold;
    display: inline-block;
    border-radius: 6px;
    padding: 0 4px;
}

a.light.block {
    display: block;
}

a.light:hover {
    color: yellow;
    background-color: black;
}