Technical Documentation Page - Build a Technical Documentation Page

Hello everybody, this is my code so far, I can’t understand why I can’t complete the following step: " 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." Thank you

Your code so far

/* file: index.html */
<!DOCTYPE html> 
<html lang="en">
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width,initial-scale=1.0">
<link rel="stylesheet" href="./styles.css"> </head>
<main id="main-doc">

<section class="main-section" id="Introduction"> 
<header>Introduction</header> </section>

<section class="main-section" id="What_you_should already_know"> 
<header>What you should already know</header></section>

<section class="main-section" id="JavaScript_and_Java"> 
<header>JavaScript and Java</header></section>

<section class="main-section" id="Hello_world">
<header>Hello world</header> </section>

<section class="main-section" id="Variables"> 

</main> </body>

/* file: styles.css */

Your browser information:

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

Challenge: Technical Documentation Page - Build a Technical Documentation Page

Link to the challenge:

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Check the id for the second section

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Solved! Thank you, I will be more careful!

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No problem! Happy coding!

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