body {
    background-image:url(https://wallpapers.com/images/featured/pastel-rainbow-background-k85bqgt0d8g9o40b.jpg);
    padding:5% 10%;
}

.container {
    background-color:white;
    padding:2%;
}

h1 {
    text-align:center;
}

nav {
     text-align:center;
     background-color:beige;
}

nav ul {
    list-style:none;
    display:inline-block;
}

nav li {
    float:left;
    margin: 0 0.2rem;
    padding: 0.5rem;
    background-color:burlywood;
    border-radius:0.5rem;
}

.main {
    display: grid;
    grid-template-columns: 25% 75%;
    grid-gap: 10px;
}

.left {
    background-color:pink;
}

.right {
    background-color:rgb(205, 231, 231);
}