.button {
    background-color: white;
    color: white;
    height: 60px;
    width: 120px;

    text-align: center;
    display: inline-block;
    font-size: 16px;
    margin: 4px 2px;
    -webkit-transition-duration: 0.4s; /* Safari */
    transition-duration: 0.4s;
    cursor: pointer;
}

    .button:active {
        transform: translateY(12px);
    }

.easy {
    background-color: white;
    color: black;
    border: 2px solid forestgreen;
}

    .easy:hover {
        background-color: forestgreen;
        color: white;
    }

.hard {
    background-color: white;
    color: black;
    border: 2px solid red;
}

    .hard:hover {
        background-color: red;
        color: white;
    }

.crazy {
    background-color: white;
    color: black;
    border: 2px solid #555555;
}

    .crazy:hover {
        background-color: black;
        color: white;
    }

.start {
    background-color: blue;
    color: white;
    border: 2px solid blue;
    margin: 4px 2px 0px 2px;
}

    .start:hover {
        background-color: white;
        color: blue;
    }

.restart {
    background-color: dimgray;
    color: white;
    border: 2px solid dimgray;
}

    .restart:hover {
        background-color: white;
        color: dimgray;
    }

.mainbackground {
    background-color: #1f1f1f;
}