Support multi-line braille in the virtual braille display.

chrome/browser/resources/chromeos/chromevox/cvox2/background/panel.css

Index: chrome/browser/resources/chromeos/chromevox/cvox2/background/panel.css
diff --git a/chrome/browser/resources/chromeos/chromevox/cvox2/background/panel.css b/chrome/browser/resources/chromeos/chromevox/cvox2/background/panel.css
index a24a10c00f71a40fbfbba3fa0cec622bbc2ed559..850412b9b30e3c8a3a9ff2c2c4a142cdb0483f03 100644
--- a/chrome/browser/resources/chromeos/chromevox/cvox2/background/panel.css
+++ b/chrome/browser/resources/chromeos/chromevox/cvox2/background/panel.css
@@ -101,10 +101,29 @@ button {
 
 #braille-container {
   height: 35px;
+  overflow: hidden;
   position: relative;
   top: -35px;
 }
 
+#braille-container * {
+  border-spacing: 0;
+  color: #fff;
+}
+
+#braille-table-holder-outer {
+  display: flex;
+  height: 100%;
+  overflow: scroll;
+  padding-bottom: 17px;
+  padding-right: 17px;
+  width: 100%;
+}
+
+.braille-table-holder {
+  flex-grow: 1;
+}
+
 #braille-text {
   font-family: 'Droid Sans Mono', Courier, monospace;
   font-size: 12pt;
@@ -299,15 +318,10 @@ button {
   width: 8em;
 }
 
-table#braille-table {
-  border: none;
-  border-spacing: 0;
-}
-
-table#braille-table * {
-  color: #fff;
+.highlighted-cell {
+  border: 1px solid white;
 }
 
-table#braille-table tr:first-child {
-  font-size: 85%;
+.unhighlighted-cell {
+  border: 1px solid black;
 }