TooltipButton rename step 2 of 2

res/css/views/elements/_TooltipButton.scss

@@ -0,0 +1,52 @@
+/*
+Copyright 2017 New Vector Ltd.
+Copyright 2019 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+.mx_TooltipButton {
+    display: inline-block;
+    width: 11px;
+    height: 11px;
+    margin-left: 5px;
+
+    border: 2px solid $neutral-badge-color;
+    border-radius: 20px;
+    color: $neutral-badge-color;
+
+    transition: opacity 0.2s ease-in;
+    opacity: 0.6;
+
+    line-height: 11px;
+    text-align: center;
+
+    cursor: pointer;
+}
+
+.mx_TooltipButton:hover {
+    opacity: 1.0;
+}
+
+.mx_TooltipButton_container {
+    position: relative;
+    top: -18px;
+    left: 4px;
+}
+
+.mx_TooltipButton_helpText {
+    width: 400px;
+    text-align: start;
+    line-height: 17px !important;
+}
+