.ex1 img{ opacity: 0.7; 
border: 1.5px solid #ccc; 
float:none;
margin: 15px

-webkit-transition: margin 0.5s ease-out; 
-moz-transition: margin 0.5s ease-out; 
-o-transition: margin 0.5s ease-out; 

/*Transition*/ 
-webkit-transition: all 0.5s ease; 
-moz-transition: all 0.5s ease; 
-o-transition: all 0.5s ease; }
.ex1 img:hover { opacity: 1; 
margin-top: 2px

/*Glow*/
-webkit-box-shadow: 0px 0px 20px rgba(255,255,255,0.8); 
-moz-box-shadow: 0px 0px 20px rgba(255,255,255,0.8); 
box-shadow: 0px 0px 20px rgba(255,255,255,0.8);}