.selector {
padding: 20px;
text-align: center;
}
select {
padding: 10px;
margin: 10px;
width: 300px;
}
button {
padding: 10px 20px;
margin: 10px;
}
#gameContainer {
display: none;
width: 90vw;
height: 90vh;
margin: 0 auto;
}