css how to add opacity to image background code example
Example 1: set background image opacity
#bg{
background-image: url('images/wood1.jpg');
opacity:0.2;
width:300px;
height:300px;
}
Example 2: css how to make background transparent
/* Use RGBA */
background-color: rgba(255, 255, 0, 0.75); /* Transparent Yellow */