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

div#container {
  background-color: bisque;
  display: grid;
  grid-template-columns: 20px 20px 20px 1fr 20px 20px;
  grid-template-rows: 100px 20px 500px 40px 100px;
  grid-template-areas: ". . header header . . " ". . nav nav . . " ". . main   main   . . " ". .  .     .   . . " " footer footer footer footer footer footer ";
}
div#container > header {
  grid-area: header;
  height: 100px;
  background-color: blue;
}
div#container > nav {
  grid-area: nav;
  background-color: coral;
}
div#container > nav > ul {
  list-style-type: none;
  display: flex;
  flex-direction: row;
}
div#container > main {
  grid-area: main;
  background-color: darkgrey;
}
div#container > main > picture > img {
  max-inline-size: 100%;
  -o-object-fit: contain;
     object-fit: contain;
  block-size: auto;
}
div#container > footer {
  grid-area: footer;
  background-color: lightgreen;
}/*# sourceMappingURL=style.css.map */