.FotoConcerto {
			position: relative;
        }

@media (min-width: 650px){        
/* Style the button and place it in the middle of the container/image */
.FotoConcerto .btn {
 position: absolute;
 top: 90%;
 left: 50%;
 transform: translate(-50%, -50%);
 -ms-transform: translate(-50%, -50%);
/* background-color: rgba(255, 255, 255, 0.2); */
 background-color: trasparent; 
 color: white;
 font-size: 16px;
 padding: 12px 24px;
 border: none;
 cursor: pointer;
 border-radius: 5px;
}


.FotoConcerto .btn:hover {
 background-color: rgba(255, 255, 255, 0.2);
  color: yellow;
} 
}

@media (max-width: 650px){
.FotoConcerto .btn {
 position: absolute;
 top: 90%;
 left: 50%;
 transform: translate(-50%, -50%);
 -ms-transform: translate(-50%, -50%);
/* background-color: rgba(255, 255, 255, 0.2); */
 background-color: trasparent; 
 color: white;
 font-size: 12px;
 padding: 12px 24px;
 border: none;
 cursor: pointer;
 border-radius: 5px;
}


.FotoConcerto .btn:hover {
 background-color: rgba(255, 255, 255, 0.2);
  color: yellow;
} 
}