Opacity

Set the opacity for an element.

Widely available

This feature is well established and works across many devices and browser versions.

Chrome
Edge
Firefox
Safari

o-0
opacity: 0;
o-10
opacity: .1;
o-20
opacity: .2;
o-30
opacity: .3;
o-40
opacity: .4;
o-50
opacity: .5;
o-60
opacity: .6;
o-70
opacity: .7;
o-80
opacity: .8;
o-90
opacity: .9;
o-100
opacity: 1;

Responsiveness

Use breakpoint prefixes to target different screen sizes. Styles apply from the breakpoint & up.

Target viewport sizes with breakpoint prefixes.

sm:o-(value)
Small≥640px
md:o-(value)
Medium≥768px
lg:o-(value)
Large≥1024px
xxl:o-(value)
Extra Large≥1536px

Hover State

Apply styles conditionally on hover using the h: prefix.

Add the h: prefix to apply styles only when the user hovers over the element.

Syntax:h:o-(value)