Responsive Web Design Projects - Build a Product Landing Page Nav Link

The nav links navigate to the corresponding sections of the site here
https://codepen.io/edemo/pen/qBoMXPL but the code will not pass the tests.
Also, how do you see the error message details in the editor on freecodecamp? I just get a blue X with no further details.

  **Your code so far**
/* file: index.html */
<html>
<head>
  <link rel="stylesheet" href="styles.css">
  </head>
  <body>
    <div id ="desc">
      <header id="header">
         <nav id="nav-bar">
        <ul>
            <li><a href="features" class"nav-link">Features</a></li>
       <li><a href="how-it-works" class="nav-link">How
         It Works</a></li>
      <li><a href="pricing" class="nav-link">Pricing</a></li>

          </ul>
          <img id="header-img" src="https://lh3.googleusercontent.com/SfasSXN1rJDgTK6Za1xcXjReglp45nXA6qT9FR3Li0iaQ23SXYrf3wAbHVOvlsNQm7LWNp10LULHX5CdZkApe3dL6LbS9m4gkuOd1sWD0QtuIegC2j5lsLnvkd0t6UIOaSvHKHg8EQ=w2400"
          alt="original fitness logo">
         

        </nav>
      </header>
      </div>
      

        <form id="form" 
        action="https://www.freecodecamp.com/email-submit">
          <input name="email" id="email" type="email"
          placeholder="Enter your email address" required>
          <input id="submit" type="submit" value="Get Started"
          class="btn">
        </form>

        <!-- Features -->
      <section id="features">

      <div class="desc">
        <h3>Quality food, not to much</h3>
        <p>Mostly plants, no processed junk. Dont know what Im
           talking about you need my program. </p>
      </div>
    </div>

        <div class="desc">
          <h3> A Lifetime of Results </h3>
          <p>Not just for weeks, months, a lifetime. Give 
            yourself the gift of self discipline to turn 
            the dream of health into a reality. </p> 
        </div>
        </section>

        <div class="container">
           <!-- Pricing -->
        <section id="pricing">
          <div id="box-container">
          <div id = "box-1">
          <div class="product" id="beginner">
            </div>
            <p>Beginner</p>
          <h4>$500<h4>
            </div>
            
          </section> 
            <!-- Video -->
          <section id="how-it-works">
          <iframe id="video" height="315" width="500"
          src= "https://www.youtube.com/embed/qUfWOT3ZujY" 
                  title="YouTube video" 
                  frameborder="0"
                  </iframe>
                  </section>
            
         
            
          
            
</div>
</div>
</body>
</html>
        

       



        
      




        
      

/* file: styles.css */
element.style{

}
.logo > img {
width: 50%;
height: 10%;
max-width: 300px;
display: flex;
justify-content: center;
align-items: center;
text-align: center;
margin-left: 20px;
}

header {
position:sticky;
display:flex;
justify-content: space-between;
padding-top: 30px 10%;
max-width: 100%;  
}
#header-img {
height: 115px;
margin-top: -18px;
max-width: 100%;
float: right;
display: inline-block;
cursor: pointer;

}

#box-1 {
background-color: 
flex-direction:column;
justify-content:space-between;
align-items:center;
margin-bottom: 55em;
}

#box-container {
flex-direction:column;
justify-content:space-between;
align-items:center;
margin-bottom: 55em;
}

#video{
width:30%;

}
  **Your browser information:**

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.0.0 Safari/537.36

Challenge: Responsive Web Design Projects - Build a Product Landing Page

Link to the challenge:

You forgot to add = to class in your first nav-link.

Well that was part of it. Nice catch. Thank you!

Still wont pass the tests though. Ill keep at it.