TIL! as with most languages, css indentifiers can't start with numbers, but you can get around that using backslash-escapes. you'd use these classes like this:

TIL! as with most languages, css indentifiers can't start with numbers, but you can get around that using backslash-escapes. you'd use these classes like this: <div class="35"> this stackoverflow answer has more info (looks like you can use any symbol you want, even spaces and [{}<>&*] !): https://stackoverflow.com/a/27882887/5534735 https://stackoverflow.com/a/27882887/5534735