<main id="main-doc">
<section class="main-section" id="intro">
<header id="intro">Introduction</header>
</section>
<section class="main-section" id="already_know">
<header id="already_know">What you should already know</header>
</section>
<section class="main-section" id="jsj">
<header id="jsj">JavaScript and Java</header>
</section>
<section class="main-section" id="hello">
<header id="hello">Hello world</header>
</section>
<section class="main-section" id="var">
<header id="var">Variables</header>
</section>
<section class="main-section" id="dec_var">
<header id="dec_var">Declaring variables</header>
</section>
<section class="main-section" id="var_scope">
<header id="var_scope">Variable scope</header>
</section>
<section class="main-section" id="glb_var">
<header id="glb_var">Global variables</header>
</section>
<section class="main-section" id="constant">
<header id="constant">Constants</header>
</section>
<section class="main-section" id="data">
<header id="data">Data types</header>
</section>
<section class="main-section" id="if_else">
<header id="if_else">if...else statement</header>
</section>
<section class="main-section" id="while">
<header id="while">while statement</header>
</section>
<section class="main-section" id="declaration">
<header id="declaration">Function declarations</header>
</section>
<section class="main-section" id="reference">
<header id="reference">Reference</header>
</section>
</main>
My problem is " Failed: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."