Writing the article

Log in to WordPress with the credentials you have received and click on "Posts --> Add New".

Images should be a maximum of 1200 pixels wide.

Videos should be MP4 format and you can use https://www.videosmaller.com/ to optimize it.

The featured image should be 800 x 600 pixels. This is set in the right sidebar under "Featured Image". You don't need to worry about any other meta fields.

Try to section your article using h2 headings and h3 subheadings. Here's an overview on how to use Gutenberg: https://wordpress.org/gutenberg/

Code

If you would like to insert code snippets, add a "Prismatic" block and choose/adjust the language in the right sidebar.

Embeds

Codepen embed example:

[codepen_embed height="542" theme_id="light" slug_hash="148b441363a320d4b46cb5ff835525ef" default_tab="result" user="SaraSoueidan"]See the Pen <a href='https://codepen.io/SaraSoueidan/pen/148b441363a320d4b46cb5ff835525ef/'>feTurbluence: baseFrequency</a> by Sara Soueidan (<a href='https://codepen.io/SaraSoueidan'>@SaraSoueidan</a>) on <a href='https://codepen.io'>CodePen</a>.[/codepen_embed]

Codesandbox example:

<iframe src="https://codesandbox.io/embed/v8439q295l?fontsize=12" style="width:100%; height:500px; border:0; border-radius: 4px; overflow:hidden;" sandbox="allow-modals allow-forms allow-popups allow-scripts allow-same-origin"></iframe>

Optional browser support icons shortcode:

[browsersupport chrome="all" safari="all" opera="all" firefox="flag" ie="9+"]

(If a browser is not supported at all, just leave it out)