body{
    margin: 0;
}

h1{
    text-align:center; 
    margin:10px;
    font-family: Arial, Helvetica, sans-serif;
}

input{
    width:50px;
}

#ui{
    margin: 0;
    position: absolute;
    top:10px;
    left:10px;
}

#main-menu{
    margin: 0;
    text-align:center;
    top:10px;
    left:10px;
}

#controls-menu{
    margin: 10px;
    text-align:center;
    top:10px;
    left:10px;
}

#gameover{
    margin: 0;
    position: fixed;
    text-align: center;
    font-size: 30px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: whitesmoke;
}