.content{opacity:1;transition:opacity .5s ease-in-out}.fade-out{opacity:0;transition:opacity .5s ease-in-out}.fade-in{opacity:1;transition:opacity .5s ease-in-out}.fade-out-long{opacity:0;transition:opacity 2s ease-in-out}.fade-in-long{opacity:1;transition:opacity 2s ease-in-out}.left-arrow{rotate:90deg}.right-arrow{rotate:270deg}.pixel_border{position:relative;border:10px solid}.left_pixel,.right_pixel{opacity:1}#left_image,#right-image,#mobile_image{object-position:top}