CSS provides the adjacent sibling combinator (+ character) and general sibling combinator (~ character), to select siblings of an element.

The child combinator represented by the greater-than character (>) select direct children of the parent element. The descendant combinator represented by a single-space character can be used to select children, grand-children, grand-grand-children also.

The :focus-within CSS pseudo-class is a selector for an element that contains a focused element as a child. It is the only CSS selector that reaches a parent from a child.

Images can be cropped in CSS using the object-fit and object-position properties. These properties can even preserve the aspect ratio by scaling the image either up or down.

If your application involves showing a lot of images then probably it makes sense to add WebP support. Using the HTML tag is the most robust solution to display WebP images with fallback.

Creating an element which would become fixed during scrolling has become very easy with CSS position : sticky. And with the new Intersection Observer API, it can be detected when an element comes in/out of sticky position.

With the introduction of sticky positioned elements, creating a navigation bar which becomes fixed on scrolling has become very easy. There is no Javascript required.

Parallax effect is one of the simplest ways to give an elegant look to your webpage. This effect can be achieved with the background-attachment CSS property.

This tutorial discusses the concepts behind achieving typewriter effect with CSS, with no Javascript involved.

This post briefly discusses some less popular CSS properties for form inputs, for example tab-index, caret-color etc. You can use them to make your form even more effective.

Typing effect is a good way to grab user attention. To implement typing effect, you can start by showing the first character initially; after a few milliseconds you can show the first 2 characters; and so on till the whole sentence has been shown.

Webpages with a fixed sidebar and a scrollable content area are quite popular. The page expands to 100% height of the screen. Depending upon the height, both the sidebar and content may have scrollbars.

Popularly used in admin pages, a page with a left sidebar to hold menu options, and a section to hold the main content is one simple design that looks good.

When an element goes to full-screen , you can change the user interface by changing CSS properties. Tutorial handles all the cases that can possibly come.

Using the scrollHeight property you can make your textarea auto grow vertically based on its content.

offsetHeight = VISIBLE content & padding + border + scrollbar ● clientHeight = VISIBLE content & padding ● scrollHeight = ENTIRE content & padding (visible or hidden)

You can use insertRule to add new CSS rules to a stylesheet using Javascript.

Lightboxes are one of the common things implemented in websites, so animating them is a good idea to impress your visitors.

Examples of revealing (show & hide) elements through CSS animations.

Moving / animating an element along a circular path can be achieved by CSS Offset Path (Motion Path).