:root {
    font-family: sans-serif;
}

body {
    width: 70%;
    margin: 0 auto;
}

/* text */
h1, h2, h3 {
    font-weight: bold;
}

h1 {
    font-size: 4rem;
}

/* header */
nav, article, aside, footer {
    padding: 1%;
}

nav {
    height: 50vh;
    display: flex;
    margin-bottom: 1rem;
}

nav menu {
    padding: 0;
    list-style-type: none;
    flex: 2;
    display: flex;
}

nav li {
    display: inline;
    text-align: center;
    flex: 1;
}

nav a {
    display: inline-block;
    font-size: 2rem;
    text-decoration: none;
}