header {
	background-image: <img src=download.webp> ;
	height:200px;
	width:1000px;
    background-color: #4CAF50; 
    color: white; 
    text-align: center;
    padding: 10px; 
}

nav {
    background-color: yellow; 
	color: white;
    text-align: center;
    margin: 10px; 
	padding: 15px;
}

nav a {
    color: white; 
    padding: 15px;
    margin: 30px;
	background-color: purple;
	text-decoration: none;
}

nav a:visited {
	color: black;
}

h2{
	color: green;
	text-align: center;
}
h1{
	color: blue;
	text-align: center;
}
li{
	color: blue;
	text-align: center;
	font-size: 15px;
}
p{
	color: purple;
	text-align: center;
	font-size: 24px;
}
body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
}

nav ul {
    display: flex;
    list-style: none;
    background: #222;
    margin: 0;
    padding: 10px;
}

nav ul li a {
    color: white;
    padding: 10px 20px;
    text-decoration: none;
}

nav ul li a.active {
    background: #4CAF50;
    border-radius: 5px;
}

@media (max-width: 900px) {
    nav ul li a {
        padding: 8px 14px;
    }
}
@media (max-width: 700px) {
    nav ul {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 600px) {
    body {
        font-size: 18px;
    }
}

@media (max-width: 600px) {
    h1 {
        font-size: 24px;
    }
}

@media (max-width: 500px) {
    main {
        padding: 10px;
    }
}

@media (max-width: 450px) {
    nav ul li a {
        font-size: 16px;
    }
}

@media (max-width: 400px) {
    nav ul li {
        margin-bottom: 5px;
    }
}

@media (max-width: 350px) {
    nav ul li a {
        width: 100%;
        display: block;
    }
}