Filed under note to self.
I have trouble remembering how to convert characters into hex for JavaScript or CSS.
For example, sometimes I like to use »
for breadcrumb separators using CSS something like this: ul.breadcrumb a:after {content:'\0064';}
but can't remember the precise hex code.
To fix this, here's Evolution Technologies' Entity Conversion Calculator iframed in this page:
I'm not claiming any ownership here, I've just embedded it for my own convenience.