html
    {
    font-family: Helvetica;
    display:inline-block;
    margin: 0px auto;
    text-align: center;
    background-color:black
    }

nav
    {
    color:tomato
    }

a
    {
    color:tomato
    }

h1
    {
    color:red
    }

.button
    {
    display: inline-block;
    background-color: #e7bd3b;
    border: none;
    border-radius: 20px;
    color: white;
    padding: 16px 40px;
    text-decoration: none;
    font-size: 30px;
    margin: 2px;
    cursor: pointer;
    }