I have the following function inside of a css file.
#portfolio .portfolio-box .portfolio-box-caption {
  display: block;
  position: absolute;
  bottom: 0;
  width: 100%;
  height: 100%;
  text-align: center;
  color: #fff;
 opacity: 0;
  background: rgba(13, 13, 13, 0.1);
  -moz-transition: all 0.3s ease-in-out;
  -o-transition: all 0.3s ease-in-out;
  -webkit-transition: all 0.3s ease-in-out;
  transition: all 0.3s ease-in-out;
}
I've changed the parameters values of the rgba function to something like:
background: rgba(255, 255, 132, 0.1);
but the changes are not visible in my browser. I have also deleted the cached browser's data but didn't get any result.
Please help me with that ! Thanks in advance.
 
     
    
 
     
     
    