body,html {
 margin: 0; padding: 0;
 background-color: #88f;
 color: #000;
 }
.main {
 width: calc(20vw + 76vmin);
 padding: 2vmin;
 margin: auto;
 font-size: calc(2vmin);
 background-color: #eef;
}
.biglogo {
width: 50%;
height: auto;
}
.lillogo {
width: 20%;
height: auto;
}
a {
text-decoration: none;
color: #f00;
}