body{
    background-color: lightblue;
}

a{
    color: red;
    font-size: 20px;
    text-decoration: none;
    font-weight: bold;
    margin: 20px;
    padding: 10px;
    border: 2px solid red;
    border-radius: 5px;
    transition: background-color 0.3s, color 0.3s;
}