* {
    margin: 0;
    padding: 0;
}

html, body {
    height: 100%;
}

body {
    background: #098724;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

footer {
    position: absolute;
    bottom: 0;
    margin-bottom: 40px;
    display: flex;
}

@media screen and (min-width: 1025px) {
    section:not(:last-of-type) {
        margin-right: 50px;
    }
}

@media screen and (max-width: 1024px) {
    main {
        text-align: center;
    }

    footer {
        width: 100%;
        justify-content: space-evenly;
    }
}

h1, h2, h3, a, li {
    font-family: Arial, Helvetica, sans-serif;
}

h1, a, li {
    color: whitesmoke;
}

h1 {
    font-size: 2.7em;
}

h2, h3 {
    color: white;
}

h2 {
    font-size: 1.5em;
    font-weight: normal;
}

h3 {
    font-size: 1.3em;
}

ul {
    list-style-type: none;
}

a {
    text-decoration: none;
}