One way to achieve reactivity in the DOM is by using MutationObserver. Its API allows us to observe changes in attributes and also in the text content of the target element and its children.
Demonstration of jQuery tabSlideOut plugin author(s): Michael Fielding
Sample code for Google Maps Platform JavaScript API author(s): Justin Poehnelt
Using IntersectionObserver
iubenda banner example with social network buttons.
#card #animation #transition #background
SCSS for a Background Image Transition
Using images embedded in SVG