Opacity properties

Set the opacity of an element. The opacity will be applied to the element and all of its children.

Opacity

Expected value:

• Enter a number in the range 0.0 to 1.0
• 0.0 is transparent
• 1.0 is opaque
• 0.5 is 50% translucent
• You cannot add a value greater than 1.0

Accepted units:

• leave blank - Do not add a unit after the number

Find more information at https://developer.mozilla.org/en-US/docs/Web/CSS/opacity