<style>
    body {
        font-family: Tahoma, sans-serif;
        font-size: 14px;
        background-color: #f0f2f5;
        margin: 0;
        padding: 0;
        text-align: center;
    }
    header {
        background-color: #1877f2;
        color: white;
        padding: 15px;
        text-align: left;
        font-size: 18px;
    }
	
	a {
	color:#f24218;
	}
	
	
    nav ul {
        list-style: none;
        padding: 0;
    }
    nav ul li {
        display: inline;
        margin: 0 15px;
    }
    nav ul li a {
        text-decoration: none;
        color: #f24218;
        font-size: 16px;
    }
    .download-btn {
        background-color: #1877f2;
        color: white;
        padding: 10px 20px;
        text-decoration: none;
        display: inline-block;
        margin-top: 10px;
        border-radius: 5px;
    }
    footer {
        margin-top: 20px;
        padding: 10px;
        background-color: #1877f2;
        color: white;
    }
</style>
