*{
    margin:0;
    padding:0;
    box-sizing:border-box;
}

body{
    font-family:Arial,Helvetica,sans-serif;
    background:#111;
    color:#fff;
}

#landing{
    height:100vh;

    display:flex;
    flex-direction:column;

    justify-content:center;
    align-items:center;

    gap:20px;
}

button{
    padding:14px 28px;
    font-size:18px;
    cursor:pointer;
}

#videos{
    display:grid;
    grid-template-columns:repeat(auto-fill,minmax(300px,1fr));
    gap:15px;
    padding:20px;
}

video{
    width:100%;
    border-radius:12px;
    background:black;
}