* {
    margin:0; padding: 0; border: 0; box-sizing: content-box;
}

/* body of the page */

#css-zen-garden {
    background: linear-gradient(180deg, #36453b, #96afb1);
    font-family: Verdana, Geneva, Tahoma, sans-serif;
}

header {
    background-image: url(../images/smith_rock.jpg);
    background-size: cover;
    background-repeat: no-repeat;
    height: 500px;
    text-align: center;
    margin-bottom: 40px;
    border-bottom: 4px solid #222;
    position: relative;
}

header h1 {
    font-size: 4em;
    color: hsla(39, 100%, 63%, .9);
    text-shadow: 6px 6px 1px black;
    padding-top: 100px;
}

.intro header h2 {
    font-style: italic;
    font-size: 2em;
    font-weight:200;
    color: white;
    padding-bottom: 10px;
    position: absolute; 
    bottom: 50px;
    left: 0; right: 0;
}

header h2 abbr {
    color: #ffbc42;
    text-shadow: 2px 4px 1px black;
}

.summary {
    text-align: center;
    color: #f5f9e9;
    margin: 20px;
    font-style: italic;
}

.summary p:nth-child(1) {
    font-size: 1.5em;
}

.summary p:nth-child(2) {
    margin: 50px auto 50px auto;
    border: 2px solid black;
    padding: 10px;
    width: 400px;
    color: #222;
    background-color: whitesmoke;
    border-radius: 25px;
    font-weight: 900;
}

.sidebar {
    width: 18%;
    margin-left: 1em; margin-right: 1em;
    position:absolute;
    top: 725px
}

.sidebar li {
    display: block;
    background-image: linear-gradient(to bottom, #999, #555);
    padding: 10px 5px;
    color: black;
    border: 2px solid black;
}

.sidebar h3 {
    padding: 10px 0px 0px 0px;
}

.wrapper h3 {
    color: #222;
}

.page-wrapper {
    color: #222;
    position: relative;
    
}

.main-supporting h3, .intro h3 {
    color: #ffbc42;
    text-decoration: underline;;
    
}

.preamble, .main-supporting {
    margin-left: 22%; 
    margin-top: 40px;
    width: 75%;
    font-weight: 450;
}
.preamble, .main-supporting h3 {
    padding: 5px 0px 5px 0px;
}

.preamble h3 {
    padding-bottom: 5px;
    text-align: center;
}

.main-supporting {
    position: relative;
    display: flex;
    flex-wrap: wrap;
    
}

.explanation, .participation, .benefits {
    flex-basis: 25%;
    flex-grow: 0;
    aspect-ratio: 2/1.5;
    padding: 5px 15px;
    border: 4px solid #222;
    border-radius: 25px;
    background-color: darkgrey;
}

.participation {
    margin: 0px 8%;
}

.explanation h3, .participation h3, .benefits h3 {
    text-align: center;
}

.requirements {
    margin: 25px 0px 50px 0px;
    align-self: flex-end;
    padding: 5px 10px;
    border: 4px solid #222;
    border-radius: 25px;
    background-color: darkgrey;
}

.requirements h3 {
    text-align: center;
}

footer {
    text-align: center;
    bottom: 5px;
    margin: auto;
}

footer a {
    display: inline-block;
    background-color: white;
    border: 2px solid black;
    border-color: #222;
    border-radius: 25px;
    padding: 0px 20px;
    margin: 5px 0;
    
}