body {
  background-image:url(https://imgur.com/qiTEpX8.gif);
  color: white;

.container {
  display: grid;
  grid-template-areas:
    "header header"
    "menu content"
    "footer footer";
  grid-template-columns: 1fr 3fr;
  gap: 3px;
  padding: 5px;
  max-width: 75%;
  margin: 0 auto; 
  background-color: white;
  font-family: Verdana;
}

.center {
  display: block;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}


.container div {
  background-color: black;
  padding: 10px;
}
.container div.header {
  grid-area: header;
  text-align: center;
}
.container div.menu {
  grid-area: menu;
}
.container div.content {
  grid-area: content;
}
.container div.footer {
  grid-area: footer;
  text-align: center;  
}