body {
}

html {
    background: url(img/background.jpg) no-repeat center center fixed;
    background-size: cover;
    height: 100%;
    overflow: hidden;
}

.division_button {
    width: 413px;
    height: 413px;
    cursor: pointer;
    margin: auto;
    background-color: transparent;
    color: white;
    font-weight: 700;
    font-size: 30px;
    border: 1px #FFFFFF4D solid;
    border-radius: 5px;
}

    .division_button:hover {
        background: #FF5102;
        color: black;
    }