body {
    margin: 0;
}

header {
    padding-top: 3em;
    padding-right: 5vw;
    padding-bottom: 4em;
    padding-left: 5vw;

    /*
    border-top: dotted white 1em;
    border-right: dashed lightgray 0.5em;
*/
    border-bottom: solid 3px black;
    /*    border-left: inset 12px #f8cb0c;*/

    background-color: #eaebeb;
    background-image: url(../img/deepai/network-information-art.jpg);
    background-size: cover;
    background-repeat: no-repeat;
    background-position: right top 44%;
}

h1 {
    margin-top: 0;
    margin-bottom: 0.5em;
    color: white;
    font-size: 7.6vw;
    text-align: center;
}


nav a {
    padding: 0.6em;
    border: solid 1px black;
    background-color: white;
    text-decoration: none;
    transition: 0.4s;
}

nav a:hover {
    background-color: black;
    color: white;
}

.active {
    background-color: black;
    color: white;
}

main {
    padding-top: 12vh;
    padding-right: 1em;
    padding-bottom: 20vh;
    padding-left: 1em;
    background-color: #97b7dd;
}

.www {
    background-color: cornflowerblue;
}

.html-css {
    background-color: #f0d22d;
}

.responsive {
    background-color: #2a5095;
}

article {
    max-width: 1100px;
    margin-right: auto;
    margin-bottom: 12vh;
    margin-left: auto;
    padding-top: 2em;
    padding-bottom: 5em;
    background-color: white;
    transition: 0.6s;
}

/*
article:hover {
    background-color: #f2e8b3;
}
*/

h2 {
    margin-top: 0;
    margin-bottom: 0.5em;
    font-size: 2.5em;
    font-weight: 400;
    text-align: center;
}

p {
    max-width: 75ch;
    margin-right: auto;
    margin-bottom: 1.5em;
    margin-left: auto;

    padding-right: 1em;
    padding-left: 1em;
}

.important {
    max-width: none;
    margin-top: 2em;
    margin-bottom: 2em;
    padding-top: 1.5em;
    padding-right: 3em;
    padding-bottom: 1.5em;
    padding-left: 3em;
    border-top: solid 3px black;
    border-bottom: solid 3px black;

    font-size: 1.5em;
    text-align: center;
    
    transition: 0.6s;
}

.important:hover {
    background-color: #b6ccf5;
}

/*
.felix {
    background-color: orangered;
    color: deepskyblue;
    padding: 1em;
    border: dotted 10px;
    font-size: 1.5em;
}
*/


a {
    color: black;
}

figure {
    margin-top: 2em;
    margin-right: 0;
    margin-bottom: 2em;
    margin-left: 0;
    background-color: #fafafa;
}

figcaption {
    padding: 1em;
}

img {
    width: 100%;
}

ul {
    list-style: none;
    max-width: 75ch;
    margin-top: 2em;
    margin-right: auto;
    margin-left: auto;
    padding-left: 0;
}

li {
    margin-bottom: 2.5em;
    padding-top: 1em;
    padding-right: 2em;
    padding-left: 2em;
    border-top: solid black 1px;
}


footer {
    padding-top: 1em;
    padding-right: 5vw;
    padding-bottom: 1em;
    padding-left: 5vw;
    background-color: black;
    color: white;
}