W3.CSS Effects

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W3.CSS Effects
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Normal

w3-opacity

w3-grayscale-max

w3-sepia-max

W3.CSS Effect Classes
W3.CSS provides the following effects classes:

Class Defines
w3-opacity Adds opacity/transparency to an element (opacity: 0.6)
w3-opacity-min Adds opacity/transparency to an element (opacity: 0.75)
w3-opacity-max Adds opacity/transparency to an element (opacity: 0.25)
w3-grayscale Adds a grayscale effect to an element (grayscale: 75%)
w3-grayscale-min Adds a grayscale effect to an element (grayscale: 50%)
w3-grayscale-max Adds a grayscale effect to an element (grayscale: 100%)
w3-sepia Adds a sepia effect to an element (sepia: 75%)
w3-sepia-min Adds a sepia effect to an element (sepia: 50%)
w3-sepia-max Adds a sepia effect to an element (sepia: 100%)
w3-hover-opacity Adds transparency to an element on hover (opacity: 0.6)
w3-hover-grayscale Adds a grayscale effect to an element on hover (grayscale: 100%)
w3-hover-sepia Adds a sepia effect to an element on hover
Opacity
The w3-opacity classes add transparency to an element:

Normal

w3-opacity-min

w3-opacity

w3-opacity-max

Example
<img src="image.jpg" class="w3-opacity-min">
<img src="image.jpg" class="w3-opacity">
<img src="image.jpg" class="w3-opacity-max">
»
Grayscale
The w3-grayscale classes add a grayscale effect to an element:

Normal

w3-grayscale-min

w3-grayscale

w3-grayscale-max

Example
<img src="image.jpg" class="w3-grayscale-min">
<img src="image.jpg" class="w3-grayscale">
<img src="image.jpg" class="w3-grayscale-max">
»
Note: The w3-grayscale classes are not supported in IE 11 and earlier versions.

Sepia
The w3-sepia classes add a sepia effect to an element:

Normal

w3-sepia-min

w3-sepia

w3-sepia-max

Example
<img src="image.jpg" class="w3-sepia-min">
<img src="image.jpg" class="w3-sepia">
<img src="image.jpg" class="w3-sepia-max">
»
Note: The w3-sepia classes are not supported in IE 11 and earlier versions.

Hover Effects
You can also add special effects on hover/mouse-over.

w3-hover-opacity

w3-hover-grayscale

w3-hover-sepia

Example
<img src="image.jpg" class="w3-hover-opacity">
<img src="image.jpg" class="w3-hover-grayscale">
<img src="image.jpg" class="w3-hover-sepia">
»
Hover Opacity Color
You can also combine any w3-hover-color classes with w3-hover-opacity to create a slightly "lighter" background color on hover:

w3-hover-red

w3-hover-red with w3-hover-opacity

Example
<div class="w3-border w3-hover-opacity w3-hover-red">
  <p>w3-hover-red with w3-hover-opacity</p>
</div>
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