document.getElementById Used to change anything in your document (web page) that has an id Then you can change different aspects of the element with that. - ppt download
javascript - document.getElementById().style.display = 'none'; only works in Firefox - Stack Overflow
Programmatically retrieving an element from the page without getElementById
Using getElementById in Javascript
html - Javascript statement document.getElementById('').style.display = "inline"; is effect later on when I open editor(Div) again - Stack Overflow
Javascript Set CSS: Set CSS styles with javascript - DEV Community