Edit in JSFiddle

/* No Javascript 
 * See the other tabs
 */
<body>
    <header>
        <a href="#home">home</a>
        <a href="#about">About Us</a>
        <a href="#contact">Contact Us</a>
    </header>
    <div id="about" class="state">
        <h1>About Us</h1>
        <p>
            Some Text here talking about us. Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat. Ut wisi enim ad minim veniam, quis nostrud exerci tation ullamcorper suscipit lobortis nisl ut aliquip ex ea commodo consequat. 
        </p>
    </div>
    <div id="contact" class="state">
        <h1>Contact Us</h1>
        <form action="#">
            <input type="email" placeholder="email" /><br>
            <input type="text" placeholder="name"/><br>
            <input type="submit" />
        </form>
    </div>
    <div id="home" class="state">
        <h1>Home</h1>
        <p>
            Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat. Ut wisi enim ad minim veniam, quis nostrud exerci tation ullamcorper suscipit lobortis nisl ut aliquip ex ea commodo consequat. Duis autem vel eum iriure dolor in hendrerit in vulputate velit esse molestie consequat,
        </p>
    </div>
</body>
.state {
    border: 1px solid black;
    margin: 20px auto;
    min-height: 200px;
    padding: 20px;
    display: none;
}

#home {
    display: block;
}

.state:target {
    display: block;
}

.state:target ~ #home {
    display: none;
}