span.key {
    padding: 4px;
    background: linear-gradient(#5e5d5d, #272727);
    color: #f9f5e1;
    font-family: RobotoCondensed, Arial, sans-serif;
    border-radius: 3px;
    border: 2px solid;
    border-top-color: #989a9a;
    border-left-color: #90908e;
    border-bottom-color: #6c6358;
    border-right-color: #86847e;
    margin: 2px;
}