The HTML element (or anchor element), with its href attribute, creates a hyperlink to web pages, files, email addresses, locations in the same page, or anything else a URL can address.| MDN Web Docs
1. Introduction| www.w3.org
The MutationObserver interface provides the ability to watch for changes being made to the DOM tree. It is designed as a replacement for the older Mutation Events feature, which was part of the DOM3 Events specification.| MDN Web Docs
HTML Components (HTC), introduced in Internet Explorer 5.5, offers a powerful new way to author interactive Web pages. Using standard DHTML, JScript and CSS knowledge, you can define custom behaviors on elements using the “behavior” attribute. Let’s create a behavior for a simple kind of “image roll-over” effect. For instance, save the following as “roll.htc”:| Clean Rinse
One of my least favorite parts about layout with CSS is the relationship of width and padding. You’re busy defining widths to match your grid or general column proportions, then down the line you start to add in text, which necessitates defining padding for those boxes. And ‘lo and behold, you now are subtracting pixels from your original width so the box doesn’t expand.| www.paulirish.com