box-shadow: 10px 10px 5px grey;
shadow-right: 10px;
shadow-bottom: 10px;
shadow-color: grey;
alpha-effect[shadow]: 10px 10px 5px grey;background-size: 80px 60px;
bg-dimensions: 80px 60px;
background-proportion: 80px 60px;
alpha-effect: bg-resize 80px 60px;object-rotation: 30deg;
transform: rotate(30deg);
rotate-object: 30deg;
transform: rotate-30deg-clockwise;transform: scale(2,4);
scale-object: 2,4;
scale: (2,4);Yes it is possible, by using CSS3 border image property we can use image as a border.
border: url(logo.png);
border: image url(logo.png);
border-image: url(logo.png) 30 30 round;::first-line selector is used to add a style to the first line of the specified selector.p::first-line {
background-color: yellow;
}<style>
#multibackgroundimg {
background-image: url(imgs/logo.png), url(imgs/sample_logo.png);
background-position: left top, left top;
background-repeat: no-repeat, repeat;
padding: 75px;
}
</style><style>
.multi_col {
/* Column count property */
-webkit-column-count: 4;
-moz-column-count: 4;
column-count: 4;
/* Column gap property */
-webkit-column-gap: 40px;
-moz-column-gap: 40px;
column-gap: 40px;
/* Column style property */
-webkit-column-rule-style: solid;
-moz-column-rule-style: solid;
column-rule-style: solid;
}
</style><style>
div {
margin: 20px;
padding: 10px;
width: 300px;
height: 100px;
border: 5px solid pink;
outline: 5px solid green;
outline-offset: 15px;
}
</style>The compositing layer in CSS3 isn't an official CSS property, but it's an important concept in how modern browsers render web pages — especially when it comes to performance and animations.
In the rendering pipeline of a browser, once elements are painted, they are composited — meaning the browser combines painted layers into the final screen image.
A compositing layer is a separate visual layer that the browser creates for an element so it can be independently rendered and managed by the GPU (Graphics Processing Unit).
Improves performance of animations and transitions.
Reduces repaints and reflows.
Enables smoother UI interactions (especially on mobile).
Certain CSS properties or actions promote an element to its own layer (also known as layer promotion). Examples:
Using transform (e.g., transform: translateZ(0) or scale())
Using will-change:
.box {
will-change: transform, opacity;
}
CSS animations and transitions on properties like opacity, transform
Using position: fixed or filter in some cases
Too many layers can hurt performance (uses more memory).
Unnecessary layer promotions can cause jank.
Best to use compositing strategically — e.g., for elements that animate frequently.
Chrome DevTools → Layers panel: Shows which elements are on separate layers.
Safari Web Inspector → Layers tab
Chrome's "Show layer borders" setting (in devtools rendering settings)
.card {
will-change: transform;
transition: transform 0.3s ease;
}
.card:hover {
transform: scale(1.05);
}
This tells the browser in advance that this element will transform, so it moves it to its own compositing layer — resulting in smoother animation.