mandoc: Use em units rather than ex units for horizontal lengths.

mandoc: Use em units rather than ex units for horizontal lengths.

[schwarze]

Log Message:
-----------
Use em units rather than ex units for horizontal lengths.
John Gardner and others tell me it produces more predictable results
and is generally considered better style.
Also use 0em instead of 0ex, in general.

Modified Files:
--------------
    mandoc:
        mandoc.css

Revision Data
-------------
Index: mandoc.css
===================================================================
RCS file: /home/cvs/mandoc/mandoc/mandoc.css,v
retrieving revision 1.29
retrieving revision 1.30
diff -Lmandoc.css -Lmandoc.css -u -p -r1.29 -r1.30
--- mandoc.css
+++ mandoc.css
@@ -5,7 +5,7 @@
 
 /* Global defaults. */
 
-html {		max-width: 100ex; }
+html {		max-width: 65em; }
 body {		font-family: Helvetica,Arial,sans-serif; }
 table {		margin-top: 0em;
 		margin-bottom: 0em; }
@@ -52,14 +52,14 @@ td.foot-os {	text-align: right; }
 /* Sections and paragraphs. */
 
 div.manual-text {
-		margin-left: 5ex; }
+		margin-left: 3.8em; }
 h1.Sh {		margin-top: 2ex;
 		margin-bottom: 1ex;
-		margin-left: -4ex;
+		margin-left: -3.2em;
 		font-size: 110%; }
 h2.Ss {		margin-top: 2ex;
 		margin-bottom: 1ex;
-		margin-left: -2ex;
+		margin-left: -1.2em;
 		font-size: 105%; }
 div.Pp {	margin: 1ex 0ex; }
 a.Sx { }
@@ -68,7 +68,7 @@ a.Xr { }
 /* Displays and lists. */
 
 div.Bd { }
-div.D1 {	margin-left: 5ex; }
+div.D1 {	margin-left: 3.8em; }
 
 ul.Bl-bullet {	list-style-type: disc;
 		padding-left: 1em; }
@@ -81,54 +81,54 @@ ul.Bl-item {	list-style-type: none;
 		padding-left: 0em; }
 ul.Bl-item > li { }
 ul.Bl-compact > li {
-		margin-top: 0ex; }
+		margin-top: 0em; }
 
 ol.Bl-enum {	padding-left: 2em; }
 ol.Bl-enum > li { }
 ol.Bl-compact > li {
-		margin-top: 0ex; }
+		margin-top: 0em; }
 
 dl.Bl-diag { }
 dl.Bl-diag > dt {
 		font-style: normal;
 		font-weight: bold; }
 dl.Bl-diag > dd {
-		margin-left: 0ex; }
+		margin-left: 0em; }
 dl.Bl-hang { }
 dl.Bl-hang > dt { }
 dl.Bl-hang > dd {
-		margin-left: 10.2ex; }
+		margin-left: 5.5em; }
 dl.Bl-inset { }
 dl.Bl-inset > dt { }
 dl.Bl-inset > dd {
-		margin-left: 0ex; }
+		margin-left: 0em; }
 dl.Bl-ohang { }
 dl.Bl-ohang > dt { }
 dl.Bl-ohang > dd {
-		margin-left: 0ex; }
-dl.Bl-tag {	margin-left: 10.2ex; }
+		margin-left: 0em; }
+dl.Bl-tag {	margin-left: 5.5em; }
 dl.Bl-tag > dt {
 		float: left;
-		margin-top: 0ex;
-		margin-left: -10.2ex;
-		padding-right: 2ex;
+		margin-top: 0em;
+		margin-left: -5.5em;
+		padding-right: 1.2em;
 		vertical-align: top; }
 dl.Bl-tag > dd {
 		clear: right;
 		width: 100%;
-		margin-top: 0ex;
-		margin-left: 0ex;
+		margin-top: 0em;
+		margin-left: 0em;
 		vertical-align: top;
 		overflow: auto; }
 dl.Bl-compact > dt {
-		margin-top: 0ex; }
+		margin-top: 0em; }
 
 table.Bl-column { }
 table.Bl-column > tbody > tr { }
 table.Bl-column > tbody > tr > td {
 		margin-top: 1em; }
 table.Bl-compact > tbody > tr > td {
-		margin-top: 0ex; }
+		margin-top: 0em; }
 
 cite.Rs {	font-style: normal;
 		font-weight: normal; }
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