html, body{
height: 100%;
}
body{
    
display: -webkit-box;
display: flex;
-webkit-box-pack: center;
 justify-content: center;
-webkit-box-align: center;
 align-items: center;
}
/*-webkit-box-pack: center;
 justify-content: center;
-webkit-box-align: center;
 align-items: center;*/
canvas{
background: black;
font-size: 2vw;
box-shadow: 1em 1em 0.5em rgba(0, 0, 0, 0.25);
outline: 1px solid white;
outline-offset: -2px;
}
#playButton {
    margin-top: 15px;
    font-size: 24px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: rgb(46, 184, 24); /* Mavi renk, istediğiniz renk ile değiştirebilirsiniz */
    color: white;
    border: none;
    outline: none;
}
#playButton::before {
    content: "";
    display: inline-block;
    width: 100%;
    height: 2px;
    background-color: black;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(-45deg); /* 45 derece döndürme */
    opacity: 0; /* Başlangıçta görünmez yapın */
    transition: opacity 0.3s ease;
}
#playButton.stopped::before {
    opacity: 1;
}