Example Full example Download. Without further ado, here's how to do it. Textarea Tabs. HTML Character Sets HTML ASCII HTML ANSI HTML Windows-1252 HTML ISO-8859-1 HTML Symbols HTML UTF-8 Exercises HTML Exercises CSS Exercises JavaScript Exercises SQL Exercises PHP Exercises Python Exercises jQuery Exercises Bootstrap Exercises Java Exercises C++ Exercises C# … But the problem with textarea element we cannot style the text inside it therefore its not possible to support syntax highlighting. can be slow when editing huge files (javascript is not a fast language). only on syntax language at the same time (no html and php syntax highlight at the same time). You can play with his script interactively here.I usually stay away from jQuery, but this seems worth it. We can use WYSIWYG HTML5 API’s contenteditable attribute to convert a div into a editor. We can also highlight code. The