body{
font-family: Arial;
margin:0;
}

header{
background:#333;
color:white;
text-align:center;
padding:20px;
}

nav{
background:#eee;
padding:15px;
}

nav a{
margin-right:15px;
text-decoration:none;
font-weight:bold;
color:black;
}

main{
padding:20px;
}

.gallery{
display:grid;
grid-template-columns:repeat(auto-fit,minmax(200px,1fr));
gap:10px;
}

.gallery img{
width:100%;
height:200px;
object-fit:cover;
}
.multimedia{
overflow: auto;
}
.multimedia-video{
display: inline-block;
padding-left: 5px;
padding-right: 5px;
width: 15,3%;
box-sizing: border-box;
}