How is this semi-transparent content block called?

1. How do you make a semi transparent box in HTML?
2. What is the code for transparent background?
3. What property is used to make an object semi transparent?
4. What is transparent in CSS?

How do you make a semi transparent box in HTML?

To achieve this, use a color value which has an alpha channel—such as rgba. As with opacity , a value of 1 for the alpha channel value makes the color fully opaque. Therefore background-color: rgba(0,0,0,. 5); will set the background color to 50% opacity.

What is the code for transparent background?

Transparency using RGBA

An RGBA color value is specified with: rgba(red, green, blue, alpha). The alpha parameter is a number between 0.0 (fully transparent) and 1.0 (fully opaque).

What property is used to make an object semi transparent?

To make an element transparent or semi-transparent, you set its Opacity property. A value of 0.0 makes the element completely transparent, while a value of 1.0 makes the element completely opaque. A value of 0.5 makes the element 50% opaque, and so on.

What is transparent in CSS?

Transparent color in CSS makes background elements visible from another top element of the page. Transparent color can be applied with background-color property and color. If we take background-color as transparent then it makes backside elements of background completely visible.