Fix style issues in IE and mobiles

customize.dist/src/less2/include/alertify.less

@@ -139,7 +139,7 @@
 
             > * {
                 width: 100%;
-                min-width: 300px;
+                min-width: 260px;
                 max-width: 500px;
                 margin: 0 auto;
                 text-align: left;
@@ -184,7 +184,7 @@
                     }
                 }
                 .alertify-tabs-contents {
-                    flex: 1;
+                    flex: 1 1 auto;
                     min-height: 0;
                     & > div {
                         max-height: 100%;

customize.dist/src/less2/include/toolbar.less

@@ -131,6 +131,7 @@
                     white-space: nowrap;
                     display: flex;
                     flex-flow: column;
+                    height: 100%;
                     .cp-toolbar-userlist-name {
                         flex: 1;
                         overflow: hidden;
@@ -759,7 +760,7 @@
         display: inline-flex;
         align-items: center;
         max-width: 100%;
-        flex: 1;
+        flex: 1 1 auto;
         //margin-bottom: -1px;
         .cp-toolbar-users {
             pre {