#wrap {
      overflow: hidden;
    }
    .box {
      color: #FFF;
      position: relative;
      float: left;
	  margin:20px;
    }
	.box img{
	    width: 340px;
		height: 258px;
	}
	 @media only screen and (max-width : 480px) {
      /* Smartphone view: 1 tile */
      .box {
        width: 100%;
      }
    }
    @media only screen and (max-width : 650px) and (min-width : 481px) {
      /* Tablet view: 2 tiles */
      .box {
        width: 50%;
     
      }
    }
    @media only screen and (max-width : 1050px) and (min-width : 651px) {
      /* Small desktop / ipad view: 3 tiles */
      .box {
        
      }
    }
    @media only screen and (max-width : 1290px) and (min-width : 1051px) {
      /* Medium desktop: 4 tiles */
      .box {
       
        
      }
    }
	
	img:hover { 
		opacity: 1; 
		-o-transition-duration: 1s; 
		-moz-transition-duration: 1s; 
		-webkit-transition: 
		-webkit-transform 1s; 
		-webkit-box-shadow: 0px 0px 4px #000; 
		-moz-box-shadow: 0px 0px 4px #000; 
		box-shadow: 0px 0px 4px #000; 
	}