Technical documentation page

Good day, please on my Technical Documentation Page project, I gave all “.main-section” element an id that matches the texts of it’s first child, having all necessary spaces in the child’s text replaced with underscores for the id’s and still doesn’t pass the test

Please post your code and a link to the project. Thanks

<!DOCTYPE html>
<html lang="en">
  <head>
    <link rel="stylesheet" href="styles.css">
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width,initial-scale=1.0">
    <title>Technical Documentation Page</title>
  </head>
  <body>
    <main id="main-doc">
      <section class="main-section" id="introduction">
        <header>Introduction</header>
        <p>JavaScript is a cross-platform, object-oriented scripting language. It is a small and lightweight language. Inside a host environment (for example, a web browser), JavaScript can be connected to the objects of its environment to provide programmatic control over them.

JavaScript contains a standard library of objects, such as Array, Date, and Math, and a core set of language elements such as operators, control structures, and statements. Core JavaScript can be extended for a variety of purposes by supplementing it with additional objects; for example:</p>
<p>
  <ul>
    <li>Client-side JavaScript extends the core language by supplying objects to control a browser and its Document Object Model (DOM). For example, client-side extensions allow an application to place elements on an HTML form and respond to user events such as mouse clicks, form input, and page navigation.</li>
    <p>
    <li>Server-side JavaScript extends the core language by supplying objects relevant to running JavaScript on a server. For example, server-side extensions allow an application to communicate with a database, provide continuity of information from one invocation to another of the application, or perform file manipulations on a server.</li>
    </p>
  </ul>
</p>
      </section>
      <section class="main-section" id="what_you_should_already_know">
        <header>What you should already know</header>
        <p>This guide assumes you have the following basic background:</p>
        <ul>
          <li>A general understanding of the Internet and the World Wide Web (WWW).</li>
          <p>
          <li>Good working knowledge of HyperText Markup Language (HTML).</li>
          </p>
          <li>Some programming experience. If you are new to programming, try one of the tutorials linked on the main page about JavaScript.</li>
        </ul>

      </section>
      <section class="main-section" id="javascript_and_java">
        <header>JavaScript and Java
          <p>JavaScript and Java are similar in some ways but fundamentally different in some others. The JavaScript language resembles Java but does not have Java's static typing and strong type checking. JavaScript follows most Java expression syntax, naming conventions and basic control-flow constructs which was the reason why it was renamed from LiveScript to JavaScript.</p>
          <p>In contrast to Java's compile-time system of classes built by declarations, JavaScript supports a runtime system based on a small number of data types representing numeric, Boolean, and string values. JavaScript has a prototype-based object model instead of the more common class-based object model. The prototype-based model provides dynamic inheritance; that is, what is inherited can vary for individual objects. JavaScript also supports functions without any special declarative requirements. Functions can be properties of objects, executing as loosely typed methods.</p>
          <p>JavaScript is a very free-form language compared to Java. You do not have to declare all variables, classes, and methods. You do not have to be concerned with whether methods are public, private, or protected, and you do not have to implement interfaces. Variables, parameters, and function return types are not explicitly typed.</p>
        </header>

      </section>
      <section class="main-section" id="variables">
        <header>
          Variables
        </header>
        <p>You use variables as symbolic names for values in your application. The names of variables, called identifiers, conform to certain rules.</p>
        <p>A JavaScript identifier must start with a letter, underscore (_), or dollar sign ($); subsequent characters can also be digits (0-9). Because JavaScript is case sensitive, letters include the characters "A" through "Z" (uppercase) and the characters "a" through "z" (lowercase).</p>
        <p>You can use ISO 8859-1 or Unicode letters such as å and ü in identifiers. You can also use the Unicode escape sequences as characters in identifiers. Some examples of legal names are Number_hits, temp99, and _name.</p>


      </section>
      <section class="main-section" id="data-types">
        <header>Data types</header>
        <p>The latest ECMAScript standard defines seven data types:</p>
        <ul>
          <li>Six data types that are primitives:</li>
          <p>
          <li id="boolean">Boolean. true and false.</li>
          </p>
          <p>
          <li id="null">null. A special keyword denoting a null value. Because JavaScript is case-sensitive, null is not the same as Null, NULL, or any other variant.</li>
          </p>
          <p>
          <li id="undefined">undefined. A top-level property whose value is undefined.</li>
          </p>
          <p>
          <li id="number">Number. 42 or 3.14159.</li>
          </p>
          <p>
          <li id="string">String. "Howdy"</li>
          </p>
          <p>
          <li id="symbol">Symbol (new in ECMAScript 2015). A data type whose instances are unique and immutable.</li>
          </p>
          <p>
          <li>and Object</li>
          </p>
        </ul>


      </section>
      <section class="main-section" id="reference">
        <header>Reference</header>
        <p>
          <ul>
            <li>All the documentation in this page is taken from <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript" target="_blank">MDN</a></li>
            
          </ul>
        </p>
        <code></code>
        <code></code>
        <code></code>
        <code></code>
        <code></code>
        <code></code>

      </section>

    </main>
    <nav id="navbar">
      <header>Js Documentation</header>
      <a class="nav-link" href="introduction">Introduction</a>
      <a class="nav-link" href="what you should already know">What you should already know</a>
    </nav>
  </body>
</html>

I’ve edited your code for readability. When you enter a code block into a forum post, please precede it with a separate line of three backticks and follow it with a separate line of three backticks to make it easier to read.

You can also use the “preformatted text” tool in the editor (</>) to add backticks around text.

See this post to find the backtick on your keyboard.
Note: Backticks (`) are not single quotes (').

do you see how your id is not matching the text of the header?
you must match the case of the letters also (upper or lowercase)

oh thanks about that

1 Like

please how am i to fix all this:

Your Technical Documentation project should use at least one media query.

Each .nav-link should have an href attribute that links to its corresponding .main-section (e.g. If you click on a .nav-link element that contains the text “Hello world”, the page navigates to a section element with that id).

Each .nav-link should have text that corresponds to the header text of its related section (e.g. if you have a “Hello world” section/header, your #navbar should have a .nav-link which has the text “Hello world”).

You should have the same number of .nav-link and .main-section elements.

Each .main-section should have an id that matches the text of its first child, having any spaces in the child’s text replaced with underscores (_ ) for the id’s.

<!DOCTYPE html>
<html lang="en">
  <head>
    <link rel="stylesheet" href="styles.css">
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width,initial-scale=1.0">
    <title>Technical Documentation Page</title>
  </head>
  <body>
    <main id="main-doc">
      <section class="main-section" id="Introduction">
        <header>Introduction</header>
        <p>JavaScript is a cross-platform, object-oriented scripting language. It is a small and lightweight language. Inside a host environment (for example, a web browser), JavaScript can be connected to the objects of its environment to provide programmatic control over them.

JavaScript contains a standard library of objects, such as Array, Date, and Math, and a core set of language elements such as operators, control structures, and statements. Core JavaScript can be extended for a variety of purposes by supplementing it with additional objects; for example:</p>
<p>
  <ul>
    <li>Client-side JavaScript extends the core language by supplying objects to control a browser and its Document Object Model (DOM). For example, client-side extensions allow an application to place elements on an HTML form and respond to user events such as mouse clicks, form input, and page navigation.</li>
    <p>
    <li>Server-side JavaScript extends the core language by supplying objects relevant to running JavaScript on a server. For example, server-side extensions allow an application to communicate with a database, provide continuity of information from one invocation to another of the application, or perform file manipulations on a server.</li>
    </p>
  </ul>
</p>
      </section>
      <section class="main-section" id="what_you_should_already_know">
        <header>What you should already know</header>
        <p>This guide assumes you have the following basic background:</p>
        <ul>
          <li>A general understanding of the Internet and the World Wide Web (WWW).</li>
          <p>
          <li>Good working knowledge of HyperText Markup Language (HTML).</li>
          </p>
          <li>Some programming experience. If you are new to programming, try one of the tutorials linked on the main page about JavaScript.</li>
        </ul>

      </section>
      <section class="main-section" id="JavaScript_and_Java">
        <header>JavaScript and Java
          <p>JavaScript and Java are similar in some ways but fundamentally different in some others. The JavaScript language resembles Java but does not have Java's static typing and strong type checking. JavaScript follows most Java expression syntax, naming conventions and basic control-flow constructs which was the reason why it was renamed from LiveScript to JavaScript.</p>
          <p>In contrast to Java's compile-time system of classes built by declarations, JavaScript supports a runtime system based on a small number of data types representing numeric, Boolean, and string values. JavaScript has a prototype-based object model instead of the more common class-based object model. The prototype-based model provides dynamic inheritance; that is, what is inherited can vary for individual objects. JavaScript also supports functions without any special declarative requirements. Functions can be properties of objects, executing as loosely typed methods.</p>
          <p>JavaScript is a very free-form language compared to Java. You do not have to declare all variables, classes, and methods. You do not have to be concerned with whether methods are public, private, or protected, and you do not have to implement interfaces. Variables, parameters, and function return types are not explicitly typed.</p>
        </header>

      </section>
      <section class="main-section" id="Variables">
        <header>
          Variables
        </header>
        <p>You use variables as symbolic names for values in your application. The names of variables, called identifiers, conform to certain rules.</p>
        <p>A JavaScript identifier must start with a letter, underscore (_), or dollar sign ($); subsequent characters can also be digits (0-9). Because JavaScript is case sensitive, letters include the characters "A" through "Z" (uppercase) and the characters "a" through "z" (lowercase).</p>
        <p>You can use ISO 8859-1 or Unicode letters such as å and ü in identifiers. You can also use the Unicode escape sequences as characters in identifiers. Some examples of legal names are Number_hits, temp99, and _name.</p>


      </section>
      <section class="main-section" id="Data-types">
        <header>Data types</header>
        <p>The latest ECMAScript standard defines seven data types:</p>
        <ul>
          <li>Six data types that are primitives:</li>
          <p>
          <li id="boolean">Boolean. true and false.</li>
          </p>
          <p>
          <li id="null">null. A special keyword denoting a null value. Because JavaScript is case-sensitive, null is not the same as Null, NULL, or any other variant.</li>
          </p>
          <p>
          <li id="undefined">undefined. A top-level property whose value is undefined.</li>
          </p>
          <p>
          <li id="number">Number. 42 or 3.14159.</li>
          </p>
          <p>
          <li id="string">String. "Howdy"</li>
          </p>
          <p>
          <li id="symbol">Symbol (new in ECMAScript 2015). A data type whose instances are unique and immutable.</li>
          </p>
          <p>
          <li>and Object</li>
          </p>
        </ul>


      </section>
      <section class="main-section" id="Reference">
        <header>Reference</header>
        <p>
          <ul>
            <li>All the documentation in this page is taken from <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript" target="_blank">MDN</a></li>
            
          </ul>
        </p>
        <code></code>
        <code></code>
        <code></code>
        <code></code>
        <code></code>
        <code></code>

      </section>

    </main>
    <nav id="navbar">
      <header>Js Documentation</header>
      <a class="nav-link" href="introduction">Introduction</a>
      <a class="nav-link" href="what you should already know">What you should already know</a>
      <a class="nav-link" href="javascript and java">JavaScript and Java</a>
      <a class="nav-link" href="variables">Variables</a>
      <a class="nav-link" href="data"></a>
    </nav>
  </body>
</html>

I’ve edited your code for readability. When you enter a code block into a forum post, please precede it with a separate line of three backticks and follow it with a separate line of three backticks to make it easier to read.

You can also use the “preformatted text” tool in the editor (</>) to add backticks around text.

See this post to find the backtick on your keyboard.
Note: Backticks (`) are not single quotes (').

As I mentioned before, you need to match your ids and your headers.
Above for eg you did not. The word What does not match what.

Then you must double check all your nav-links are also matching.

Also double check that you are using an underscore. For eg here you used a dash not an underscore.

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