.left_video{background-image:url(./video.gif);background-repeat:no-repeat;background-position:0px 50%;padding-left:20px;}
.right_video{background-image:url(./video.gif);background-repeat:no-repeat;background-position:right 50%;padding-right:20px;}
.left_photo{background-image:url(./photo.gif);background-repeat:no-repeat;background-position:0px 50%;padding-left:20px;}
.right_photo{background-image:url(./photo.gif);background-repeat:no-repeat;background-position:right 50%;padding-right:20px;}
.left_music{background-image:url(./music.gif);background-repeat:no-repeat;background-position:0px 50%;padding-left:18px;}
.right_music{background-image:url(./music.gif);background-repeat:no-repeat;background-position:right 50%;padding-right:18px;}
.left_flash{background-image:url(./flash.gif);background-repeat:no-repeat;background-position:0px 50%;padding-left:20px;}
.right_flash{background-image:url(./flash.gif);background-repeat:no-repeat;background-position:right 50%;padding-right:20px;}