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HTML How to Make a Website Responsive Web Design and Testing Website Testing

Justin Sze Wei Teo
Justin Sze Wei Teo
9,418 Points

Error & Warning in W3C Validator

Hi all,

I received 1 error and 1 warning in the W3C validator, kindly find below a screenshot of what I encountered,

W3C Validation Error and Warning

1) I looked at other posts and apparently, if I replace "|" with "%7C", this will suffice. Is this a robust solution for all scenarios moving forward?

2) The warning I was prompted with (Section lacks heading). I recall there was no need to put a h1,h2,etc. heading for this part in the tutorial. Moving forward, will this be okay to ignore?

Also, for your reference, below is my index.html code,

<!DOCTYPE html>
    <meta charset="utf-8">
    <title>Justin Teo | Designer</title>
    <link rel="stylesheet" href="CSS/normalize.css">
    <link href='https://fonts.googleapis.com/css?family=Changa+One|Open+Sans:400,400italic,700italic,700,800' rel='stylesheet' type='text/css'>
    <link rel="stylesheet" href="CSS/main.css">
    <link rel="stylesheet" href="CSS/responsive.css">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
      <a href="index.html" id="logo">
        <h1>Justin Teo</h1>
          <li><a href="index.html" class="selected">Portfolio</a></li>
          <li><a href="about.html">About</a></li>
          <li><a href="contact.html">Contact</a></li>
    <div id="wrapper">
        <ul id="gallery">
            <a href="Images/numbers-01.jpg">
              <img src="Images/numbers-01.jpg" alt="">
              <p>Experimenting with colours and shapes</p>
            <a href="Images/numbers-02.jpg">
              <img src="Images/numbers-02.jpg" alt="">
              <p>Doodling with miracle colours</p>
            <a href="Images/numbers-06.jpg">
              <img src="Images/numbers-06.jpg" alt="">
              <p>Splash wish colours</p>
            <a href="Images/numbers-09.jpg">
              <img src="Images/numbers-09.jpg" alt="">
              <p>Psychedelic designs</p>
            <a href="Images/numbers-12.jpg">
              <img src="Images/numbers-12.jpg" alt="">
              <p>Incredibly colourful</p>

       <a href="https://www.facebook.com/justin.tsw"> <img src="Images/facebook-wrap.png" alt="Here lies the facebook logo" class= "social-icon"></a>
       <a href="http://twitter.com/nickrp"><img src="Images/twitter-wrap.png" alt="Here lies the facebook logo" class= "social-icon"> </a>
        <p>&copy; 2014 Justin Teo. </p>

Thanks very much all! Appreciate your kind inputs =)

5 Answers

18,813 Points

Welcome to Treehouse!

Yes, using the encoding for the pipe character in urls is a good practice moving forward. For other characters, you can refer to this page on url encoding.

The warning is just letting you know that you haven't identified that section. You might consider adding a gallery heading to identify the section for things like screen readers, even if you don't think it's necessary for the visual design. For this course though, you can safely ignore the warning.

Happy coding! :)

1,773 Points

Could you elaborate on what you mean by gallery heading please?

This post helped me get through my issue. As for the %7C, is that something that i will have to keep doing moving forward from here on out?

This post helped me get through my issue. As for the %7C, is that something that i will have to keep doing moving forward from here on out?

Quinton Rivera
Quinton Rivera
5,177 Points

i have the same problem guys this is confusing

Tyler Nelke
Tyler Nelke
1,049 Points

I believe what rydavim meant is that the checker wants to know what the heading (h1, h2, h3, etc...) of the section is. If you'll notice, both the Contact and About pages have headings. The Portfolio page is currently the only one where we haven't added a heading to identify a section. I found the solution by nesting an h3 element within the section element.

Hope this helps future viewers!