.enlace {
    color: white;
    text-decoration: none;
}

.enlace:hover {
    color: #ff0000;
    text-decoration: none;
}

.theme{
    color: white;
    text-decoration: none;
}
.theme:hover{
    background-color: blueviolet;
    color: white;
    font-weight: bold;
}