/* Element Selectors */
body {
    background-color: #f0f4f8;
    color: #243b53;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    padding: 40px;
    line-height: 1.6;
}

h1 {
    color: #102a43;
    border-bottom: 3px solid #627d98;
    padding-bottom: 10px;
}

h2 {
    color: #243b53;
    margin-top: 30px;
    border-bottom: 2px solid #d9e2ec;
    padding-bottom: 8px;
}

h3 {
    color: #243b53;
    margin-top: 20px;
}

p {
    margin: 15px 0;
}

a {
    color: #1274e7;
    text-decoration: none;
    font-weight: bold;
}

a:hover {
    text-decoration: underline;
}

img {
    border-radius: 4px;
    margin: 20px 0;
    border: 1px solid #d9e2ec;
    max-width: 100%;
    height: auto;
}

ul {
    line-height: 1.8;
}

hr {
    border: 0;
    border-top: 1px solid #d9e2ec;
    margin: 25px 0;
}

/* Class Selector - JELLO LAYOUT */
.container {
    background-color: white;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

/* Semantic HTML5 Elements */
header {
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 3px solid #627d98;
}

nav {
    background-color: #f7fafc;
    padding: 20px;
    border-radius: 6px;
    margin-bottom: 30px;
}

nav ul {
    list-style-type: none;
    padding-left: 0;
}

nav li {
    margin: 10px 0;
}

main {
    margin-bottom: 40px;
}

section {
    margin-bottom: 40px;
}

article {
    background-color: #f7fafc;
    padding: 20px;
    border-radius: 6px;
    margin-top: 15px;
}

footer {
    margin-top: 40px;
    padding-top: 20px;
    border-top: 2px solid #d9e2ec;
    text-align: center;
}

footer p {
    margin-top: 20px;
    font-size: 0.9em;
    color: #627d98;
}
```

```
http://cit-web.regionals.miamioh.edu/users/sowellk/CIT273/index.html