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

header {
    background-image: url('stars.jpg');
    background-size: cover;
    background-position: center;
    color: white;
    padding: 20px;
    text-align: center;
}

header h2, header p {
    color: white;
}


main {
    display: flex;
    width: 100%;
}

body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
}


nav {
background-color: #008080;
    width: 25%; 
    padding: 20px;
    order: 1;
}

nav ul {
    list-style-type: none;
}

nav li {
    margin-bottom: 10px;
}

nav a {
    color: white;
    text-decoration: none;
    display: block;
    padding: 8px;
    transition: background-color 0.3s;
}

nav a:hover {
background-color: blue;}  



.content {
    width: 75%; 
    padding: 20px;
    order: 2; 
}

.content h1 {
    margin-bottom: 15px;
}

.content p {
    margin-bottom: 15px;
}


.columns {
    display: flex;
    width: 100%;
    background-color: lightblue;
}

.column {
    flex: 1;
    padding: 20px;
    border: 1px solid #ccc;
}

.column h3 {
    margin-bottom: 10px;
}


footer {
    background-color: darkblue;
    color: white;
    text-align: center;
    padding: 20px;
    clear: both;
}