63 lines
1.6 KiB
Markdown
63 lines
1.6 KiB
Markdown
---
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title: Background Opacity
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---
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## Background Opacity
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The opacity property specifies the opacity/transparency of an element, that is, the degree to which the content behind the element is visible.
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The opacity property can take a value from 0.0 - 1.0. The lower value, the more transparent:
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Find more details <a href='https://www.w3schools.com/css/css_image_transparency.asp' target='_blank' rel='nofollow'>here</a>
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You can choose up to what extent you want to make the element transparent.
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You have to add the following CSS property to achieve the transparency levels.
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**Fully Opaque**
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```css
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.class-name {
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opacity:1;
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}
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OR
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.class-name {
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opacity:1.0;
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}
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```
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**Translucent**
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```css
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.class-name {
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opacity:0.5;
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}
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Opacity value can be anything between 0 and 1;
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```
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**Transparent**
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```css
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.class-name {
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opacity:0;
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}
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OR
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.class-name {
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opacity:0.0;
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}
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```
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Alternatively you can use a transparent rgba value like this:
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```css
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.class-name{
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background-color: rgba(0,0,0,.5);
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}
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```
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The example above sets the background to be black with 50% opacity. The last value of an rgba value is the alpha value. An alpha value of 1 equals 100%, and 0.5 (.5 for short) quals 50%. We use this method to add transparency to an element without affecting the content inside.
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[A codepen example to show background opacity ranges](https://codepen.io/lvcoulter/full/dVrwmK/)
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#### More Information:
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For more information visit [MDN](https://developer.mozilla.org/en-US/docs/Web/CSS/opacity)
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[Opacity CSS property at CSS-Tricks](https://css-tricks.com/almanac/properties/o/opacity/)
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Browser support: <a href= 'https://caniuse.com/#search=opacity' target= '_blank' rel= 'nofollow'>caniuse</a>
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