body {
    background-color: #6666ff;
    color: white;
    text-align: center;
}

body>header>h1 {
    background: transparent url("https://dream.public.cat/uploads/dream/original/1X/0c90cdab7f4542baa08e4232e2ddb7e8216b419c.png") center/15rem no-repeat;
    line-height: 15rem;
    color: transparent;
}

body>header>h2 {
    font-size: 2.5rem;
    font-weight: normal;
}

body>header {
    padding-bottom: 1.5rem;
}

.tagline {
    font-size: 1.25rem;
}

main>article {
    display: grid;
    grid-template-columns: 33% 34% 33%;
    background-color: #2196F3;
    padding: 10px;
}

main>article>section {
    background-color: gray;
    border: 1px solid black;
    padding: 20px;
    font-size: 1.5rem;
    text-align: center;
}

main nav a {
    background-color: #4CAF50;
    border: none;
    color: white;
    padding: 15px 32px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 1rem;
}

aside {
    width: 60%;
    margin: auto;
}

aside>section {
    margin: 3rem auto;
}

section {
    background-color: gray;
    border: 0.5rem solid #2196F3;
    padding: 20px;
}