Remove null link from "welcome to tips" default suggestion. Also make some h...

chrome/browser/resources/new_new_tab.css

 html {
   /* This is needed because of chrome://theme/css/new_tab.css */
   height: 100%;
 }
 
 body {
   margin: 0;
 }
 
 #main {
@@ skipping 421 matching lines @@
   font-size: 100%;
 }
 
 html[dir='rtl'] .item {
   background-position-x: 100%;
   padding-right: 18px;
   padding-left: 2px;
   text-align: right;
 }
 
+.tips-title {
+  color: black;
+  text-decoration: none;
+  padding-top: 6px;
+  white-space: normal;
+}
+
+.tips-container {
+  padding-top: 4px;
+}
+
 .window {
   position: relative;
   overflow: visible; /* We use visible so that the menu can be a child and shown
                         on :hover. To get this to work we have to set visibility
                         to visible which unfortunately breaks the ellipsis for t
                         he window items */
   background-image: url(chrome://theme/newtab_closed_window);
 }
 
 .window-menu {
@@ skipping 181 matching lines @@
 #option-menu > div {
   padding: 3px 8px;
   overflow: hidden;
   text-overflow: ellipsis;
 }
 
 #option-menu > [selected] {
   background-color: hsla(213, 66%, 57%, 1);
   color: white;
 }