converted font-size values from px and percentages to em values (issue 315310043 by address@hidden)

[graham]

Reviewers: ,

Message:
The beginning of CSS cleanup; no visible changes so far.  Please review.

Description:
converted font-size values from px and percentages to em values

Please review this at https://codereview.appspot.com/315310043/

Affected files (+9, -9 lines):
  M Documentation/css/lilypond-website.css


Index: Documentation/css/lilypond-website.css
diff --git a/Documentation/css/lilypond-website.css  
b/Documentation/css/lilypond-website.css
index  
e018b49774186c5467fccb989b8f7df228e31c90..936af77b75f96a8085048231f2729a3dbed268a7  
100644
--- a/Documentation/css/lilypond-website.css
+++ b/Documentation/css/lilypond-website.css
@@ -13,7 +13,7 @@ body {
   width: 99%;
   min-width: 42em;
   max-width: 70em;
-  font-size: 95%;
+  font-size: 0.95em;
   line-height: 1.5;
   text-align: justify;
   padding: 0;
@@ -78,7 +78,7 @@ div#tocframe {
     rgb(25, 115, 50),
     rgb(45, 205, 115));
   max-width: 70em;
-  font-size: 100%;
+  font-size: 1em;
   line-height: 1;
   padding: 0;
   border-bottom-left-radius: 7px;
@@ -120,7 +120,7 @@ div#tocframe {
 #tocframe li form {
   float: left;
   width: 16%;
-  font-size: 100%;
+  font-size: 1em;
   padding: 0.5em 0.8%;
   margin: 0 0 0 1%;
 }
@@ -129,7 +129,7 @@ div#tocframe {
   display: block;
   float: left;
   width: 92%;
-  font-size: 90%;
+  font-size: 0.9em;
   color: rgb(85, 85, 85);
   background: rgb(235, 242, 232);
   padding: 0.1em 0.1em 0.1em 0.6em;
@@ -178,7 +178,7 @@ div#tocframe {
   top: 3.8em;
   left: 0.5%;
   right: 0.5%;
-  font-size: 82%;
+  font-size: 0.82em;
   padding: 0;
   margin: 0;
 }
@@ -237,7 +237,7 @@ div#tocframe {
   position: absolute;
   top: 2em;
   left: 5%;
-  font-size: 100%;
+  font-size: 1em;
 }

 #tocframe .toc .toc .toc li {
@@ -332,7 +332,7 @@ div#cmws {
 div#quickSummary {
   text-align: left;
   margin: 3em 14em 25px 0;
-  font-size: 19px;
+  font-size: 1.25em;
 }

 #quickSummary p {
@@ -390,7 +390,7 @@ div#quickSummary {
 }

 #homepage-sidebar .subheading {
-  font-size: 15.2px;
+  font-size: 1em;
   background: #5b7f64;
   color: #fff;
   padding: 0.2em 0.5em 0.1em 0.7em;
@@ -655,7 +655,7 @@ div.float-center a.clickable {
 }

 .news-item h3 {
-  font-size: 15.2px;
+  font-size: 1em;
 }

 /* color3 */