body, html {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}
#output {
    position: relative;
    width: 100vw;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: url('yeet.png') no-repeat center center;
    background-size: contain;
}
#overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0; 
    transition: opacity 0.5s ease;
    font-size: 20px;
    text-align: center;
    display: flex;
    flex-direction: column;
}
img.yeet {
    display: none;
}