* {
    margin: 0; padding: 0;
}

body {
    background-color: lightblue;
    color: darkred;
    font-family: verdana, arial, sans-serif;
    padding: 12px;
}
header {
    border: 4px solid yellow;
    padding: 12px;
}
header > h1 {
    text-align: center;
    font-weight: normal;
    text-transform: uppercase;
    color: darkgreen;
    padding-bottom: 20px;
    margin-bottom: 20px;
    border-bottom: 2px solid yellow;
}
header span {
    display: block;
    border: 0px;
    color: blue;
}
.subtitle {
    text-align: center;
    border: 2px solid black;
    padding: 10px;
    line-height: 1.5;
    text-transform: lowercase;
    letter-spacing: 8px;
}
header + p {
    display: none;
}
section {
    display: flex;
    justify-content: center;
    flex-flow: row wrap;
    margin-bottom: 800px;
}
section article {
    border: 2px solid red;
    max-width: 360px;
    min-height: 200px;
    margin: 10px;
    flex: 0 0 auto;
    padding: 4px;
}
article h2 {
    font-size: 16pt;
}
article p {
    margin: 8px;
    line-height: 1.4;
}
#art1 div {
    width: 70%;
    aspect-ratio: 3/1;
    background-color: green;
    margin: 20px auto;
    border-radius: 20px;
}
#art2 div {
    width: 70%;
    aspect-ratio: 3/1;
    background-color: hotpink;
    margin: 20px auto;
    box-shadow: -8px 8px 10px 5px darkred;
}
#art3 h2 {
    font-family: "Playwrite AU SA", cursive;
    text-align: center;
    font-size: 18pt;
    color: darkblue;
}
#art4 {
    position: relative;
}
#art4 h2 {
    position: absolute;
    color: black;
    bottom: 0; left: 0;
    width: 100%;
    text-align: center;
    padding-bottom: 60px;
}
#art5 {
    position: relative;
}
#art5 div {
    position: absolute;
}
#art5 div:nth-of-type(1) {
    width: 30%; aspect-ratio: 1;
    background-color: gold;
    bottom: 10px; left: 100px;
    z-index: 30;
}
#art5 div:nth-of-type(2) {
    width: 30%; aspect-ratio: 1;
    background-color: red;
    bottom: -10px; right: 100px;
    z-index: 5;
}
#art6 {
    transition: all 300ms linear;
}
#art6:hover {
    background-color: hotpink;
    color: white;
    border: 4px solid green;
}