body {
    background: linear-gradient(to right, #bdc3c7, #ecf0f1);
    padding: 5%;
    font-family: "Gill Sans", "Courier New";
    font-weight: lighter;
}

#main {
    margin: auto;
    text-align: center;
}

#goUp {
    border: none;
    color: white;
    background-color: #9b59b6;
    font-size: 18pt;
    padding: 2%;
    transition: all .3s linear;
    font-family: "Gill Sans", "Courier New";
    font-weight: lighter;
}

#goUp:focus {
    outline: 0;
}

#goUp:hover {
    box-shadow: 3px 3px 10px #666666;
    cursor: pointer;
}

#number {
    font-size: 24pt;
}