Personal Portfolio Webpage - Build a Personal Portfolio Webpage

Tell us what’s happening:
I’m in the last step of the portafolio web, and is telling me that at least one element needs to be class=“project-tile”, which I did, and still nothing happens, cannot go forward. Thanks in advance if anybody know what is happening.

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <link rel="stylesheet" href="./styles.css">
    <title>Skalex Stuch Page</title>
</head>
<body>
        <nav id="navbar" class="nav">
            <ul class="nav-list">
                <li>
                    <a href="#welcome-section">About</a>
                </li>
                <li>
                    <a href="#projects-section">Projects</a>
                </li>
                <li>
                    <a href="#contact-section">Contact</a>
                </li>
            </ul>
        </nav>

    <section id="welcome-section" class="welcome-section">
        <h1>Hello World, I'm Skalex!</h1>
        <p>a web developer in learning-mode!</p>
    </section>

    <section id="projects-section" class="projects-section">

        <h2 class="project-tile">These are some of my projects</h2>
        
        <div id="projects" class="projects-grid">
            
            <a class="lewagon" href="https://venecoinchina.github.io/lewagon-clone/" target="_blank" class="project project-tile"></a>

            <a class="google-clone" href="https://venecoinchina.github.io/google-clone/" target="_blank" class="project project-tile"></a>
            
            <a class="techdocupage" href="https://venecoinchina.github.io/techDocuPage/" target="_blank" class="project project-tile"></a>
            
            <a class="survey-form" href="https://venecoinchina.github.io/surveyForm/" target="_blank" class="project project-tile"></a>
            
            <a class="landing-project" href="https://venecoinchina.github.io/landingPage/" target="_blank" class="project project-tile"></a>
            
            <a class="freecodecamp" href="https://venecoinchina.github.io/magazine/" target="_blank" class="project project-tile"></a> 
        </div>

        <!-- Add this button when there are more project!

            <a class="btn-projects" href="#" target="_blank">Show More<span class="right-arrow"> ></span></a>
        -->

    </section>

    <section id="contact" class="contact-section">
        <div class="contact-section-header">
            <h2>Looking forward to work with you!</h2>
            <p>Where are you from?</p>
        </div>

        
        <div id="contact-section" class="contact-links">

            <a id="profile-link" href="https://github.com/Venecoinchina" target="_blank" class="btn contact-details"><span><img src="./icons/001-github.png" alt=""></span> Github</a>
            
            <a href="#" target="_blank" class="btn contact-details"><span><img src="./icons/002-discord.png" alt=""></span> Discord</a>
            
            <a href="mailto:skalexstuch@me.com" target="_blank" class="btn contact-details"><span><img src="./icons/003-email.png" alt=""></span> Email</a>
            
            <a href="#" target="_blank" class="btn contact-details"><span><img src="./icons/004-wechat.png" alt=""></span> Wechat</a>

            <a href="https://www.linkedin.com/in/skalex-stuch-5a99b720" target="_blank" class="btn contact-details"><span><img src="./icons/005-linkedin.png" alt=""></span> Linkedin</a>
    
        </div>
    </section>
    <footer>
        <h3>Special Thanks to</h3>
        <section class="right-footer">
        <p><a href="https://www.freecodecamp.org" target="_blank">www.freecodecamp.org</a></p>
        <p><a href="https://www.platzi.com" target="_blank">www.platzi.com</a></p>
        <p><a href="https://www.theodinproject.com" target="_blank">www.theodinproject.com</a></p>
        <p><a href="https://www.lewagon.com" target="_blank">www.learn.lewagon.com</a></p>
    </section>
    <section class="left-footer">
        <p>All the icons for social network was designed by:</p>
        <div>Icons made by <a href="https://www.freepik.com" title="Freepik">Freepik</a> from <a href="https://www.flaticon.com/" title="Flaticon">www.flaticon.com</a></div><div>Icons made by <a href="https://www.flaticon.com/authors/riajulislam" title="riajulislam">riajulislam</a> from <a href="https://www.flaticon.com/" title="Flaticon">www.flaticon.com</a></div><div>Icons made by <a href="https://www.flaticon.com/authors/laisa-islam-ani" title="Laisa Islam Ani">Laisa Islam Ani</a> from <a href="https://www.flaticon.com/" title="Flaticon">www.flaticon.com</a></div>
    </section>
    </footer>
</body>
</html>

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Challenge: Personal Portfolio Webpage - Build a Personal Portfolio Webpage

Link to the challenge:

You are using two class attributes for all of the .project-tile elements.

You should only use one class attribute in an element.

Thanks! I’m gonna check this.