CSS Opacity

From WikiOD

Syntax[edit | edit source]

  • opacity: number (* strictly between 0 and 1) | inherit | initial | unset;

Remarks[edit | edit source]

If you do not want apply opacity, you can use this instead:

background: rgba(255, 255, 255, 0.6);

Resources:

Opacity Property[edit | edit source]

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
</div>
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`[edit | edit source]

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;
}

Credit:Stack_Overflow_Documentation