Design A Custom Select Box Using HTML, CSS & JavaScript - YouTube
Javascript HTML element get selected select option text value notepad ++ - YouTube
HTML Select item with Icons in addition to just text labels - applying the CSS background-style to the HTML OPTION element - AMIS, Data Driven Blog - Oracle & Microsoft Azure
GitHub - PhilippeMarcMeyer/vanillaSelectBox: A dropdown menu with lots of features that takes a select tag and transforms it into a single or multi- select menu with 1 or 2 levels
Custom Single/Multi Select In Pure JavaScript - vanillaSelectBox | CSS Script