CSS Opacity

CSS Opacity
Published on 2021-07-08 14:47:02

Opacity Property

An element's opacity can be set using the opacity property. Values can be anywhere from 0.0 (transparent) to 1.0 (opaque).

Example Usage

<div style="opacity:0.8;">
This is a partially transparent element

Property Value Transparency

  • opacity: 1.0; Opaque
  • opacity: 0.75; 25% transparent (75% Opaque)
  • opacity: 0.5; 50% transparent (50% Opaque)
  • opacity: 0.25; 75% transparent (25% Opaque)
  • opacity: 0.0; Transparent

IE Compatibility for `opacity`

To use opacity in all versions of IE, the order is:

.transparent-element {
/* for IE 8 & 9 */
-ms-filter:"progid:DXImageTransform.Microsoft.Alpha(Opacity=60)"; // IE8
/* works in IE 8 & 9 too, but also 5, 6, 7 */
filter: alpha(opacity=60); // IE 5-7
/* Modern Browsers */
opacity: 0.6;

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