How do you add CSS rules (eg strong { color: red }) by use of Javascript?

Mar 4, 2011 · 18 All of the answers tell you correctly how to do what you asked but I would advise using JavaScript to set a class on the element and style it by using CSS. That way you are keeping the …

Feb 25, 2016 · 24 What is a good way to apply styling dynamically (i.e. the value of styles are created at runtime) to HTML elements with JavaScript? I'm looking for a way to package a JavaScript widget …

I want to add CSS attributes to my element, but my current solution loses all previous attributes that had an impact on the element. function checkNr(id) { var value = document.getElementById(id)...

function setStyle(el, css){ el.setAttribute('style', el.getAttribute('style') + ';' + css); } setStyle(nFilter, 'width:330px;float:left;'); This makes sure that you can add styles to it continuously and it won't …

Feb 22, 2009 · Is it possible to import css stylesheets into a html page using Javascript? If so, how can it be done? P.S the javascript will be hosted on my site, but I want users to be able to put in the <h...

Nov 28, 2016 · element.classList.remove("my-class"); If you need to support Internet Explorer 9 or lower: Add a space plus the name of your new class to the className property of the element. First, …

Suppose a HTML element's id is known, so the element can be refereced using: document.getElementById(element_id); Does a native Javascript function exist that can be used to …

Jan 31, 2011 · I'm making a widget that will be added to external websites, and I have made a page that generates css for them to style it (text color, background color, font size, etc). I end up with a textarea ...

Is there a way to add css from a string in the javascript file to the head of a document with javascript? Let's say we have a webpage, which has a lightbox script, this script requires a css file to function.