Correctly position tooltips relative to parent element.

src/components/views/rooms/RoomTooltip.js

@@ -66,7 +66,7 @@ module.exports = React.createClass({
         // positioned, also taking into account any window zoom
         // NOTE: The additional 6 pixels for the left position, is to take account of the
         // tooltips chevron
-        var parent = ReactDOM.findDOMNode(this);
+        var parent = ReactDOM.findDOMNode(this).parentNode;
         var style = {};
         style.top = parent.getBoundingClientRect().top + window.pageYOffset;
         style.left = 6 + parent.getBoundingClientRect().right + window.pageXOffset;

src/skins/vector/css/matrix-react-sdk/views/messages/_MImageBody.scss

@@ -19,11 +19,10 @@ limitations under the License.
   margin-right: 34px;
 }
 
-.mx_MImageBody_thumbnail {
-    max-width: 100%;
-/*
-    background-color: $primary-bg-color;
-    border: 2px solid $primary-bg-color;
-    border-radius: 1px;
-*/
+.mx_MImageBody_thumbnail_container {
+  display: inline-block;
+}
+
+img.mx_MImageBody_thumbnail {
+  max-width: 100%;
 }

src/skins/vector/css/vector-web/views/rooms/_RoomTooltip.scss

@@ -49,5 +49,6 @@ limitations under the License.
     line-height: 14px;
     font-size: 13px;
     color: $primary-fg-color;
+    max-width: 600px;
+    margin-right: 50px;
 }
-