body{
font-family:Arial;
background:#111;
color:white;
text-align:center;
}

video{
width:80%;
max-width:600px;
background:black;
border-radius:10px;
}

button{
padding:10px 20px;
margin:10px;
font-size:16px;
}

select{
padding:8px;
font-size:16px;
}

input{
width:80%;
padding:8px;
}