Add CSS for mlist truncation

matrix-org/matrix-react-sdk#544

src/skins/vector/css/matrix-react-sdk/views/elements/MemberEventListSummary.css

@@ -0,0 +1,36 @@
+/*
+Copyright 2016 OpenMarket Ltd
+
+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_TextualEvent.mx_MemberEventListSummary_summary {
+    font-size: 14px;
+}
+
+.mx_MemberEventListSummary_avatars {
+    display: inline-block;
+    margin-right: 8px;
+    padding-top: 8px;
+    line-height: 12px;
+}
+
+.mx_MemberEventListSummary_avatars .mx_BaseAvatar {
+    margin-right: -4px;
+    cursor: pointer;
+}
+
+.mx_MemberEventListSummary_toggle {
+    color:#76cfa6;
+    cursor:pointer;
+}