body {
    font-family: 'Comic Sans MS', cursive, sans-serif;
    background-color: #e0f7fa;
    color: #004d40;
    margin: 0;
    padding: 0;
}

.container {
    width: 80%;
    margin: auto;
    overflow: hidden;
}

header {
    background: #00796b;
    color: #ffffff;
    padding-top: 30px;
    min-height: 70px;
    border-bottom: #004d40 3px solid;
}

header a {
    color: #ffffff;
    text-decoration: none;
    text-transform: uppercase;
    font-size: 16px;
}

nav {
    float: right;
    margin-top: 10px;
}

nav ul {
    margin: 0;
    padding: 0;
    list-style: none;
}

nav ul li {
    display: inline;
    margin-left: 5px;
}

nav ul li a {
    color: #ffffff;
    text-decoration: none;
    padding: 5px 20px;
    border-radius: 5px;
    transition: 0.3s;
}

nav ul li a:hover {
    background: #004d40;
}

h1, h2, h3 {
    color: #004d40;
}

footer {
    background: #004d40;
    color: #ffffff;
    text-align: center;
    padding: 15px;
    position: absolute;
    bottom: 0;
    width: 100%;
}

button {
    background-color: #00796b;
    border: none;
    color: white;
    padding: 10px 24px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    margin: 4px 2px;
    cursor: pointer;
}