I need to code inside an HTML box in a CMS system as you can see in the picture.
I have never coded with inline-style only style sheets.
This is what I can write the HTML code with inline-style on. It's inside an HTML CMS box:
It's got to look like this ideally - 4 boxes with text, no stylesheet:
Just write the HTML in your normal IDE and then copy/paste it into the HTML part of the CMS control.
Rather than having the Styles in a stylesheet, put them inside the same file as the html in a style tag, then reference the classes as you would normally if reading from a style sheet.
e.g.
<style>
.style { font-color:red; }
</style>
<p class="style"></p>