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">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width,initial-scale=1.0">
<link rel="stylesheet" href="./styles.css"> </head>
<body>
<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">
<header>Variables</header></section>
</main> </body>
</html>
/* file: styles.css */
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Challenge: Technical Documentation Page - Build a Technical Documentation Page
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