html {
    max-width: 1000px;
    box-sizing: border-box;
    margin: 2em auto;
}

*,
*::before,
*::after 
{
    margin: 0;
    box-sizing: inherit;
    font-family: sans-serif;
}

body {
    background-color: #ffffff;
    line-height: 1.5;
}

header {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
}

header a {
    text-decoration: none;
    color: black;
    padding: 10px;
    text-transform: uppercase;
}

header a:hover {
    background-color: lightgrey;
}

header > nav {
    display: inline;
}

header > nav > ul {
    list-style: none;
    display: flex;
}

header > nav > ul li {
    padding: 10px;
}

main > article.projects_container {
    gap: 10px;
}

main > article > p {
    margin-top: 1.5em;
    margin-bottom: 1.5em;
}

main > article > section {
    padding-top: 5px;
    padding-bottom: 5px;
    margin-top: 10px;
    margin-bottom: 10px;
    min-width: 25%;
}

main > article.projects_container > section > aside > ul{
    display: flex;
    flex-wrap: wrap;
    list-style: none;
    padding: 0;
}

main > article.projects_container > section > aside > ul > li {
    border-width: 1px;
    border-radius: 5px;
    border-style: solid;
    border-color: lightgray;
    flex: 1 1 revert;
    font-size: small;
    margin: 5px;
    padding: 2px 5px 2px;
    white-space: nowrap;
}

footer {
    bottom: 0;
    height: 40px;
    width: 100%;
    position: fixed;
}

footer > section.social-bar {
    background-color: #ffffff;
    display: flex;
    flex-wrap: nowrap;
    justify-content: center;
    padding: 10px;
}

footer > section.social-bar > a {
    flex-grow: 0;
    flex-shrink: 1 ;
    flex-basis: 40px;
    text-decoration: none;
}

footer > section.social-bar > a > img {
    height: 30px;
    padding: 5px;
}