estilo.css

@import url('https://fonts.googleapis.com/css2?family=Coiny&family=Roboto:wght@400;700&display=swap');

* {
    box-sizing: border-box;
}

body {
    color: #333;
    font: 400 24px 'Roboto', sans-serif;
}

nav h1, footer h1 {
    font-family: 'Coiny', cursive;
}

nav {
    padding: 20px;
    text-transform: capitalize;
}

header h1 {
    font-size: 41px;
}

h1,h2,h3,h4 {
    color: black;
}

h2,h3 {
    font-size: 20px;
    background-color: #FCEE21;
}

h3 {
    font-size: 26px;
}

footer {
    background-color: #FCEE21;
}

h4 {
    font-size: 51px;
    color: white;
    background-color: black;
}

footer h1 {
    font-size: 33px;
}

main {
    font-size: 21px;
}