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CSS Reference

CSS Reference
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CSS Properties

animation
appearance
backface-visibility
background
border
bottom
box
caption-side
clear
clip
color
column
content
counter-increment
counter-reset
cursor
direction
display
empty-cells
float
font
grid-columns
grid-rows
hanging-punctuation
height
icon
@keyframes
left
letter-spacing
line-height
list-style
margin
max-height
max-width
min-height
min-width
nav
opacity
outline
overflow
overflow-x
overflow-y
padding
page-break
perspective
perspective-origin
position
punctuation-trim
quotes
resize
right
rotation
rotation-point
table-layout
target
text
top
transform
transition
vertical-align
visibility
width
white-space
word-spacing
word-break
word-wrap
z-index

CSS3 opacity Property

CSS Reference Complete CSS Reference

Example

Set the opacity level for a div element:

div
{
opacity:0.5;
}

Try it yourself »
More examples at the bottom of this page.

Browser Support

Internet Explorer Firefox Opera Google Chrome Safari

The opacity property is supported in all major browsers.

Note: IE8 and earlier supports an alternative, the filter property. Like: filter:Alpha(opacity=50).

Definition and Usage

The opacity property sets the opacity level for an element.

Default value: 1
Inherited: no
Version: CSS3
JavaScript syntax: object.style.opacity=0.5

Syntax

opacity: value|inherit;

Value Description Play it
value Specifies the opacity. From 0.0 (fully transparent) to 1.0 (fully opaque) Play it »
inherit The value of the opacity property should be inherited from the parent element

Examples

Try it Yourself - Examples

Change the opacity for an element
This example demonstrates how to use a JavaScript to change the opacity for an element.

CSS Reference Complete CSS Reference
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