css background-image transaparency code example

Example 1: set background image opacity

#bg{
background-image: url('images/wood1.jpg');
opacity:0.2;
width:300px;
height:300px;
}

Example 2: background image opacity css

/* Two ways to make images opaque */

div {
	background-color : rgba(120, 120, 120, 0.5) 
   	/* the 0.5 is the value of opacity on a scale of 0-1 */
}

/* OR */

div {
	background-color : blue
    opacity : 50%
}

Example 3: how to give linear transprerancyon background image

background: linear-gradient(to right, rgba(255,255,255,0) 20%,
              rgba(255,255,255,1)), url(http://foo.com/image.jpg);