minor style fixes to book page

htdocs/static/css/liber.css

@@ -53,6 +53,11 @@ footer {
     margin: 0;
 }
 
+.book-authors {
+    font-size: 110%;
+    font-weight: bold;
+}
+
 /* Debugging */
 .debug {
     display: none;

htdocs/templates/book.html

@@ -35,7 +35,7 @@
     {{range $i, $f := .Files}}
     <p>
       <a class="btn btn-large btn-primary" href="/dl/{{$f.Id}}/{{$i}}">
-        <span class="glyphicon glyphicon-download-alt"></span>
+        <span class="glyphicon glyphicon-download"></span>
         Download ({{$f.FileType}})
       </a>
     </p>
@@ -45,6 +45,7 @@
     <p>
       <a class="btn btn-large btn-primary"
          href="/read/{{.Book.Id}}/{{.EpubIndex}}">
+        <span class="glyphicon glyphicon-book"></span>
         Read Online
       </a>
     </p>