DOMUI Prefs: Miscellaneous style tweaks

chrome/browser/resources/options/browser_options_page.css

 
 #startupPageManagement.settings-list > :last-child {
   border-top: 1px solid #d9d9d9;
   padding: 5px 10px;
 }
 
+#startupPagesShortList {
+  min-height: 0;
+}
+
 .startup-page-list .title {
   width: 40%;
 }
 
 .startup-page-list .url {
   -webkit-box-flex: 1;
   color: #666;
 }
 
 .startup-page-list .url input {
@@ skipping 55 matching lines @@
 
 #instantConfirmLearnMore {
   position: absolute;
   bottom: 18px;
 }
 
 #startupAddButton {
   margin-left: 0;
   margin-top: 10px;
 }