web-tp-site/styles/main.css

body {
    background-color: #ebebeb;
    margin: 0;
}

a { 
    background-color: darkgrey; 
    text-decoration: none;
    padding-left: 10px;
    padding-right: 10px;
}

a:link, a:visited { color: white; }
a:hover { color: cadetblue; background-color: white; }
a:active { color: darkgrey; }

/* HEADER */

.header {
    border-left: 10px solid cadetblue;
    background-color: #ebebeb;
    position: sticky;
    top: 0px;
}

.header .title {
    display: block;
}

.header h1 {
    margin-left: 10px;
    margin-bottom: 4px;
    margin-top: 0;
}

.header img {
    position: absolute;
    right: 0;
    top: 0;
    width: 124px;
}

.header nav {
    background-color: cadetblue;
}

.header nav a {
    background-color: cadetblue;
    margin-inline: 10px;
}

.header a:hover { color: darkgrey; }
.header a:active { color: cadetblue; }

/* MAIN CONTENT */

.main-content {
    border-left: 10px solid cadetblue;
    border-right: 2px solid cadetblue;
    border-radius: 0 14px 0 0;
    margin-right: 20%;
}

.main-content section {
    margin-left: 10px;
    border-bottom: 2px solid cadetblue;
}

.main-content .articles div {
    height: 600px;
    overflow: scroll;
}

.main-content .actus div {
    height: 200px;
    overflow: scroll;
}

.main-content .articles article {
    margin-bottom: 50px;
}

.main-content h2,h3 {
    border-bottom: 6px solid cadetblue;
    border-left: 6px solid darkgrey;
    border-radius: 0 14px;
    padding-bottom: 4px;
    padding-left: 10px;
}

.main-content h2 {
    background-color: cadetblue;
    border-bottom: 6px solid darkgrey;
    margin-bottom: 3px;
}

.main-content h4 {
    border-bottom: 2px solid cadetblue;
    padding-bottom: 4px;
}

.main-content p, li {
    padding-right: 20px;
    text-align: justify;
}

.main-content .actus h4 {
    margin-bottom: 0;
    padding-bottom: 2px;
}

.main-content .actus p {
    margin-top: 2px;
}

/* ASIDE */

.links {
    background-color: #ebebebca;
    padding-left: 2%;
    padding-right: 2%;
    padding-top: 1%;
    border: 6px solid cadetblue;
    border-radius: 0 14px;
    display: block;
    position: fixed;
    top: 113px;
    right: 16px;
    height: 400px;
}

.links h3, ul {
    text-align: justify;
}

/* FOOTER */

footer {
    background-color: darkgray;
    padding: 0;
    margin: 0;
    position: sticky;
    bottom: 0px;
}

footer p {
    display: inline-block;
    text-align: right;
    padding: 0;
    margin: 0;
}