A more complete example of 222's answer:
ul {
list-style:none;
padding: 0 0 0 2em; /* padding includes space for character and its margin */
/* IE7 and lower use default */
*list-style: disc;
*padding: 0 0 0 1em;
}
ul li:before {
content: '\25BA';
font-family: "Courier New", courier, "Lucida Sans Typewriter", "Lucida Typewriter", monospace;
margin: 0 1em 0 -1em; /* right margin defines spacing between bullet and text. negative left margin pushes back to the edge of the parent <ul> */
/* IE7 and lower use default */
*content: none;
*margin: 0;
}
ul li {
text-indent: -1em; /* negative text indent brings first line back inline with the others */
/* IE7 and lower use default */
*text-indent: 0;
}
I have included star-hack properties to restore the default list styles in older IE versions. You could pull these out and include them in a conditional include if desired, or replace with a background-image based solution. My humble opinion is that special bullet styles implemented in this manner should degrade gracefully on the few browsers that don't support pseudoselectors.
Tested in Firefox, Chrome, Safari and IE8-10 and renders correctly in all.