Thanks, all, for your replies and suggestions.... After further review and trials and errors, your solution, Isaacgallegos turned out to be the winning one...
Code:
#item1,
#item2,
#item3,
#item4,
#item5,
#item6 {position:relative; top:-20px; float:left; margin:10px;}
...with the items' order in the html (1,2,3... vs. 6,5,4...) determining their ultimate order in the browser....
Thanks for the guidance!