/* Horizontal Menu */
nav {
    background-color:#1b7865;
    overflow: hidden;
}

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

nav ul li {
    float: left;
}

nav ul li a {
    display: block;
    color: white;
    text-align: center;
    padding: 14px 16px;
    text-decoration: none;
}

nav ul li a:hover {
    background-color: #111;
}
header {
    display:flex;
    background-color: #1b7865;
    color: white;
    text-align: center;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  
}
footer {
    display:flex;
    flex-direction: column;
    background-color: #1b7865;
    color: white;
    text-align: center;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    margin-top: 50px;
}
main {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin-top: 50px;
}
footer p,li {
    margin: 0;
    padding: 10px;
    text-align: center;
}

footer ul li {
    color: white;
    list-style-type: none;
    text-decoration: none;
}