<h1>Heading 1</h1>

<h2>Heading 2</h2>

<h3>Heading 3</h3>

<h4>Heading 4</h4>

<h5>Heading 5</h5>

<h6>Heading 6</h6>

body {

font-family: Arial, sans-serif;

margin: 0;

padding: 0;

line-height: 1.6;

background-color: #f4f4f4;

}

header {

background-color: #333;

color: #fff;

padding: 1rem 0;

text-align: center;

}

header nav ul {

list-style: none;

padding: 0;

}

header nav ul li {

display: inline;

margin: 0 10px;

}

header nav ul li a {

color: #fff;

text-decoration: none;

}

.cta-button {

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