CSS opacity
Published Jul 7, 2021Updated Nov 17, 2023
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To measure of how transparent an element is.
Syntax
opacity: <value>;
The <value> is measured from 0 to 1:
- 0 representing 0%, or fully invisible.
- 1 representing 100%, or fully visible and opaque.
Example 1
Set the h1 tag to be 50% visible:
h1 {opacity: 0.5;}

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