HTML preprocessors can make writing HTML more powerful or convenient. For instance, Markdown is designed to be easier to write and read for text documents and you could write a loop in Pug.
In CodePen, whatever you write in the HTML editor is what goes within the <body>
tags in a basic HTML5 template. So you don't have access to higher-up elements like the <html>
tag. If you want to add classes there that can affect the whole document, this is the place to do it.
In CodePen, whatever you write in the HTML editor is what goes within the <body>
tags in a basic HTML5 template. If you need things in the <head>
of the document, put that code here.
The resource you are linking to is using the 'http' protocol, which may not work when the browser is using https.
CSS preprocessors help make authoring CSS easier. All of them offer things like variables and mixins to provide convenient abstractions.
It's a common practice to apply CSS to a page that styles elements such that they are consistent across all browsers. We offer two of the most popular choices: normalize.css and a reset. Or, choose Neither and nothing will be applied.
To get the best cross-browser support, it is a common practice to apply vendor prefixes to CSS properties and values that require them to work. For instance -webkit-
or -moz-
.
We offer two popular choices: Autoprefixer (which processes your CSS server-side) and -prefix-free (which applies prefixes via a script, client-side).
Any URLs added here will be added as <link>
s in order, and before the CSS in the editor. You can use the CSS from another Pen by using its URL and the proper URL extension.
You can apply CSS to your Pen from any stylesheet on the web. Just put a URL to it here and we'll apply it, in the order you have them, before the CSS in the Pen itself.
You can also link to another Pen here (use the .css
URL Extension) and we'll pull the CSS from that Pen and include it. If it's using a matching preprocessor, use the appropriate URL Extension and we'll combine the code before preprocessing, so you can use the linked Pen as a true dependency.
JavaScript preprocessors can help make authoring JavaScript easier and more convenient.
Babel includes JSX processing.
Any URL's added here will be added as <script>
s in order, and run before the JavaScript in the editor. You can use the URL of any other Pen and it will include the JavaScript from that Pen.
You can apply a script from anywhere on the web to your Pen. Just put a URL to it here and we'll add it, in the order you have them, before the JavaScript in the Pen itself.
If the script you link to has the file extension of a preprocessor, we'll attempt to process it before applying.
You can also link to another Pen here, and we'll pull the JavaScript from that Pen and include it. If it's using a matching preprocessor, we'll combine the code before preprocessing, so you can use the linked Pen as a true dependency.
Search for and use JavaScript packages from npm here. By selecting a package, an import
statement will be added to the top of the JavaScript editor for this package.
Using packages here is powered by esm.sh, which makes packages from npm not only available on a CDN, but prepares them for native JavaScript ESM usage.
All packages are different, so refer to their docs for how they work.
If you're using React / ReactDOM, make sure to turn on Babel for the JSX processing.
If active, Pens will autosave every 30 seconds after being saved once.
If enabled, the preview panel updates automatically as you code. If disabled, use the "Run" button to update.
If enabled, your code will be formatted when you actively save your Pen. Note: your code becomes un-folded during formatting.
Visit your global Editor Settings.
<!-- Original code and discussion on dev.to here : https://dev.to/njericooper/7-must-haves-for-html-in-your-site-template-578i -->
<!-- NAV element doesn't need role="navigation" -->
<nav>
<!-- role="menu" should be reserved for application menus, not site nav -->
<ul>
<li>
<!-- TABINDEX is given to A elements automatically and does not need to be set -->
<!-- ALT text is for images; if you want to include more info for screenreaders other than the URL, you could use aria-label here? I wouldn't, however, use it when it just repeats the link text -->
<a href="#home">Home</a>
</li>
<li>
<a href="#who" aria-label="Who is Njeri Cooper?">Who</a>
</li>
<li>
<a href="#what" aria-label="What does Njeri Cooper Do?">What</a>
</li>
<li>
<a href="#contact" aria-label="Contact Njeri Cooper">Contact</a>
</li>
</ul>
</nav>
<!-- if you're going to use role="main", might as well use a MAIN element instead? -->
<main>
<section id="who">
<!-- Additional DIV inside the SECTION is likely unnecessary? -->
<!-- This markup was missing an H1 element; ideally, no heading levels would be skipped -->
<h1>Who TF is Coop?</h1>
<p>Njeri Cooper is a front end web and iOS developer. Lorem Khaled Ipsum is a major key to success.</p>
<p>They don’t want us to win. I’m giving you cloth talk, cloth. Special cloth alert, cut from a special cloth.</p>
</section>
<section class="section section-2" id="what" background="https://vignette.wikia.nocookie.net/steven-universe/images/e/ed/Steven_the_Swordfighter_Cloud_Temple_Background.jpg/" loading="lazy" alt="Cloud Temple Image From Steven Universe">
<h2>What</h2>
<!-- This used to be a DIV with a list of links, but should instead be an unorderd list? -->
<ul>
<li>
<!-- Same notes about TABINDEX and ALT text -->
<a href="http://github.com/njericooper" aria-label="Njeri's Github">git</a>
</li>
<li>
<a href="https://dev.to/njericooper" aria-label="Njeri's tech blog">dev to</a>
</li>
<li>
<!-- The class "last" may be unnecessary and could be achieved via CSS pseudoclasses, e.g. .links li:last-of-type ? -->
<a href="https://twitter.com/njericooper" aria-label="Njeri's Twitter" tabindex="6">twitter</a>
</li>
</ul>
</section>
</main>
<!-- This element was repeated in your markup <div class="email-container"> -->
<!-- Instead of a DIV, this could be an ASIDE element? -->
<aside>
<!-- A FORM element doesn't need role="form" -->
<form>
<!-- If this button is going to toggle the DIV below it, you're going to want to introduce additional ARIA attributes: aria-controls, aria-expanded and aria-hidden -- You can even use these instead of the class names like "shown" -->
<!-- Or, alternately, you can hide the trigger button and just display the email form by default for screenreaders, eliminating an interaction -->
<button type="button" id="trigger" aria-controls="input-container" aria-expanded="false">Notify me</button>
<div id="input-container" aria-hidden="true">
<!-- If your focus is accessibility, you want to make sure to include LABELs with FOR attributes conntected to all your INPUTs -->
<label for="notify-email">Email address</label>
<input id="notify-email" type="text" placeholder="E-mail">
<!-- role="button" is default for the BUTTON element -->
<!-- BUTTON elements get tabindex by default -->
<!-- If this submits the form, the type should be submit? -->
<button type="submit">Send</button>
</div>
<!-- Assuming the success message starts hidden -->
<div id="success" hidden>Thank you!</div>
</form>
</aside>
<!-- The ROLE attribute here is 👍🏻 -- it is not consistently applied to the FOOTER element by screenreaders and other tools -->
<footer class="footer" role="contentinfo">
<p>©2019 OG Codes</p>
</footer>
Also see: Tab Triggers