layoutmargins.css

/* A few random ideas I've just had. Might not actually work. */

/* You know the CURRENT situation (overriding the first one because it's often not applicable)... */
.exampleList > li { margin-left: 100px; }
.exampleList > li:first-child { margin-left: 0; }

/* With a similar level of browser support, this could be achieved by ...*/
.exampleList > li + li { margin-left: 100px; }

/* Or how about negative margins on the parent? */
.exampleList { margin-left: -100px; }
.exampleList > li { margin-left: 100px; }