* {
  box-sizing: border-box;
}

html {
    background-image: linear-gradient(to top, #1e0f1d, #061f2b);
    background-repeat: no-repeat;
    background-attachment: fixed;
    width: 100%;
    height: 100%;
}

body {
  font-family: monospace;
}

ul {
  list-style-type: none;
  margin: 0;
  padding: 0;
  overflow: hidden;
  border: 1px #d945d1 solid;
}

li {
    float: left;
}

li a {
  display: block;
  color: white;
  text-align: center;
  padding: 14px 16px;
  text-decoration: none;
}

li a:hover {
  background-color: #111;
}

.container {  
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  grid-template-rows: auto auto auto;
  grid-auto-rows: 1fr;
  gap: 5px;
  grid-auto-flow: row;
  grid-template-areas:
    "header header header"
    "content content content"
    "footer footer footer";
  margin-left: 20%;
  margin-right: 20%;
  
}

.header { grid-area: header; }

.content {
    grid-area: content;
    color: #fff;
    padding: 5px;
    margin-left: 10%;
    margin-right: 10%;
}



.footer { grid-area: footer; }