*
{
    margin: 0;
    padding: 0;
}

html,
body
{
    overflow: hidden;
    width: 100%;
    height: 100%;
}

.webgl
{
    position: fixed;
    top: 0;
    left: 0;
    outline: none;
    width: 100vw;
    height: 100vh;
    display: block;
}

.play-button {
    position: fixed;
    top: 20px;
    left: 20px;
    z-index: 100;
    padding: 10px 15px;
    background-color: #eaf192;
    color: rgb(0, 0, 0);
    border: none;
    border-radius: 4px;
    font-size: 16px;
    cursor: pointer;
    box-shadow: 0 2px 5px rgba(243, 250, 29, 0.416);
    transition: background-color 0.3s;
}

.play-button:hover {
    background-color: #fdfa21;
}

.play-button:active {
    transform: translateY(1px);
}