.BL
.LI
this is a list item
indented with tabs
.LI
this is a list item
indented with spaces
.LE 1
.P
Code:
.VERBON 2
this code block is indented by one tab
.VERBOFF
.P
And:
.VERBON 2
    this code block is indented by two tabs
.VERBOFF
.P
And:
.VERBON 2
+   this is an example list item
    indented with tabs

+   this is an example list item
    indented with spaces
.VERBOFF