style.css

* {
    margin: 0;
    padding: 0;
    font-family: 'Poppins', sans-serif;
    outline: none;
    text-align: center;
}

body {
    background-color: black;
    color: whitesmoke;
}

header {
    margin-top: 60px;
    background-color: rgb(224, 224, 54);
    color: black;
    padding: 60px;
    font-size: 1.5em;
}

#headerB {
    border: 10px solid rgb(50, 50, 50);
    max-width: 700px;
    margin: auto;
    padding-top: 70px;
    padding-bottom: 70px;
}

#headerB > h1 {
    margin-bottom: 20px;
}

#finalizado::after {
    content: ' \2714'
}

main {
    margin-top: 60px;
    background-color: rgb(119, 11, 11);
    padding-bottom: 70px;
    padding-top: 70px;
    font-size: 1.7em;
}

main > h2 {
    margin-bottom: 30px;
}

ul {
    border: 5px solid rgb(50, 50, 50);
    width: 90vw;
    margin: auto;
    list-style-type: none;
    padding: 10px;
}

li {
    margin-top: 30px;
    margin-bottom: 30px;
}

li img {
    width: 80%;
    max-width: 1000px;
    border-radius: 10px;
    box-shadow: 1px 1px 6px rgba(0, 0, 0, 0.5);
}

a {
    color: whitesmoke;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

a[rel="external"]::after {
    content: ' \2197';
}

footer {
    margin-top: 10px;
    padding: 10px;
    font-size: 1.2em;
}