body{
    display:flex;
    flex-direction: column;
    align-items: center;
}

h1{
    font-size: 80px;
    font-family: fantasy, Arial, Helvetica, sans-serif;
}

#display{
    font-family: monospace, Arial, Helvetica, sans-serif;
    text-align: center;
    border: 2px solid black;
    border-radius: 20px;
    padding: 10px;
    font-size: 3em;
}

#controls{
    text-align: center;
    margin: 20px;
}

#controls button{
    font-size: 2em;
    margin: 5px;
    border-radius: 10px;
    border-style: none;
    box-shadow: 2px 2px 6px black;
    cursor: pointer;
    color: white;
    font-family: fantasy, Arial, Helvetica, sans-serif;
}

#startB{
    background-color: hsl(120, 100%, 25%);
}

#resetB{
    background-color: hsl(240, 100%, 50%);
}

#stopB{
    background-color: hsl(0, 100%, 50%);
}

#startB:hover{
    background-color: hsl(120, 100%, 35%);
}

#resetB:hover{
    background-color: hsl(240, 100%, 60%);
}

#stopB:hover{
    background-color: hsl(0, 100%, 60%);
}

#controls button:active{
    box-shadow: inset 2px 2px 6px black;
}