As you may know, there are many CSS commands that you'll find yourself repeatedly implementing across every web page you build. These include custom text selection, easing variables, hairline borders and more. While they're very simple to tuck into the back end of any site you're developing, you may not be well enough versed in CSS to understand the best way to do it or how to translate it to or from HTML.
Thankfully, there's a solution. If you've ever found yourself wishing there was a cache of useful little snippets that form the cornerstones of CSS basics, there's a Github page in the wild that hands it to you plain and simple with HTML and CSS tabs for your preferential treatment. Aside from the above-listed examples of essential CSS code, this site also includes gradient text, multi-dimensional centering, overflow scroll gradients, pop-out menus, text truncation and clearfix commands. Each entry is voted by the general public for its usefulness, and you'll find many hassle-free commands on this page that will simply work no matter what your setup is.
Now, keep in mind that some of these commands may behave oddly in certain browsers. Some complain that certain CSS inputs won't play nice with Firefox whereas HTML does, and others find that you need certain plugins or other requisites to make it pan out. In the case of Firefox, you may need to use the -moz- prefix with the text selection to make it work with Mozilla's engine. Little issues like these can really stub your developer toes when trying to build your own web pages; just remember that patience is key.
Some people also find that the overflow scroll gradient isn't rendering boundaries, and the muddier colors don't work so hot with the text color gradients. Generally, the input is very positive toward the commands provided on this page, but you may have to do a little research and attempt your site development on a different browser to make it all come together. Also remember that not every browser will be equally compatible with CSS as with HTML, so if one ends up breaking your page, it may be prudent to consider a SaaS alternative for translating it or otherwise plugging in the other language to make ends meet.