body{
    text-align: center;
    background-color: rgb(60,60,60);
}
h1{
    font-family: 'Courier New', Courier, monospace;
    font-size: 3.5em;
    margin-top: 4em;
    color: white;
}
hr{
    border: none;
    height: 10px;
    background-color: white;
}
.kostky{
    font-weight: bold;
    font-family: 'Courier New', Courier, monospace;
    position: absolute;
    margin-top: 5em;
    font-size: 5em;
    color: white;
    width: 40%;
}
#kostka1{
    text-align: left;
    margin-left: 52%;
}
#kostka2{
    text-align: right;
    margin-left: 8%;
}
#start{
    margin-top: 1.5em;
    font-size: 2em;
    border-radius: 15px;
    padding: 0.5em;
    font-family: 'Courier New', Courier, monospace;
    font-weight: bold;
}
#start:hover{
    transition: 1s;
    background-color: black;
    border: solid white 2px;
    color: white;
}