Technical Documentation Page - Build a Technical Documentation Page

please I can’t save my code

Your code so far

<!-- file: index.html -->
<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8"/>
    <link rel="stylesheet" href="styles.css"/>
    <meta name="veiwpoint" content="width-device-width,inital-scale=1.0">
    </head>
    <body>
<nav id="navbar"><header>DESCRIPTION</header><a class="nav-link" href="#Topic_1"> Topic 1<a class="nav-link" href="#Topic_2"> Topic 2<a class="nav-link" href="#Topic_3"> Topic 3</a><a class="nav-link" href="#Topic_4"> Topic 4</a><a class="nav-link" href="#Topic_5"> Topic 5</a></nav>
<main id="main-doc">
 <section class="main-section" id="TOPIC_1"><header><nav id="nav-bar"> </a>TOPIC 1<code></code><li></li><p></p><p></p></header></section>
 <section class="main-section" id="TOPIC_2"><header><nav id="nav-bar"> TOPIC 2<code></code><li></li><p></p><p></p></header></section>
 <section class="main-section" id="TOPIC_3"><header><nav id="nav-bar"> TOPIC 3<code></code><li></li><p></p><p></p></header></section>
 <section class="main-section" id="TOPIC_4"><header><nav id="nav-bar"> TOPIC 4<code></code><li></li><p></p><p></p></header></section>
 <section class="main-section" id="TOPIC_5"><header><nav id="nav-bar"></nav></a> TOPIC 5<code></code><li></li><p></p><p></p></header></section>
 </nav>

 </main>

 </body>

 </html>
/* file: styles.css */
@media only screen and(max-width:768px)
/* For mobile phones:*/ 
 [class*="col-"] {
  width:
100%;
 }
}

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/107.0.0.0 Safari/537.36

Challenge: Technical Documentation Page - Build a Technical Documentation Page

Link to the challenge:

you can copy it to your computer to a local file called index.html and styles.css
Usually the browser saves it if you are keeping the cookies (and not deleting them)