css color transparent code example

Example 1: css how to make background transparent

/* Use RGBA */
background-color: rgba(255, 255, 0, 0.75); /* Transparent Yellow */

Example 2: css opacity background color

background: rgba(255, 255, 255, 0.25);

Example 3: css opacity example

.opacity30 {
  opacity: 0.3;
  filter: alpha(opacity=30); /* For IE8 and earlier */
}

Example 4: background color cs rgba

#p1 {background-color:rgba(255,0,0,0.3);}

Example 5: css transparent background color

div {
 opacity:25% ; 
}

Example 6: background color with opacity

h1 {background-color:rgba(255,0,0,0.3);}