*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
main{
    width: 100vw;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #212121;
    position: relative;
    overflow: hidden;
}
#draw{
    /* background-color: rgba(38, 38, 38, 0.8); */
    background: #f1f1f1;
    border-radius: 13px;
    animation: draw 2s infinite;
    touch-action: none;
    max-width: 90vw; 
    max-height: 80vh;
}
#clear{
    position: absolute;
    top: 0;
    width: 17vw;
    height: 7vw;
    border-radius: 13px;
    border:none;
    box-shadow: inset 0 0 100px 0 rgba(231, 224, 224, 0.5);
    font-size: 3rem;
    color: crimson;
    cursor: pointer;
    background-color: cornsilk;
}
#clear:hover{
    background-color: crimson;
    color: cornsilk;
}

@media screen and (max-width: 768px), (max-height: 768px) {
    #clear {
        width: 30vw;
        height: 10vw;
        font-size: 2rem;
        bottom: 5px;
    }

    #draw {
        max-width: 95vw;
        max-height: 75vh;
    }
}