Basic fade-in animation

Workaround to avoid display: none problems.

Let’s allow the user to resize any element

HTML and CSS only Interactive Carousel

Snapping, clickable and responsive images in a Carousel effect without JavaScript. Open on JSFiddle to experience full interaction.

Fit SVG into its parent

Open example in a new page and resize the result window to check how the SVG is fitted to his parent.

If what you want is to scale SVG backgrounds, you can check it easily on MDN web docs.

Modern horizontal and vertical center