Here's a few useful snippets I encounter during my programming journey, a few might be too obvious for a lot of people but this also works as a reminder for me, feel free to enjoy it. ✨
While web-developing you may encounter problems with CSS3 on IE or Edge, but this will probably save your life:
<meta http-equiv="X-UA-Compatible" content="IE=edge">
put it inside your <head> at the beginning of your HTML.