Change the look of the spinner

res/css/_common.scss

@@ -428,6 +428,10 @@ input[type=text]:focus, input[type=password]:focus, textarea:focus {
     border-radius: 8px;
     padding: 0px;
     box-shadow: none;
+
+    /* Don't show scroll-bars on spinner dialogs */
+    overflow-x: hidden;
+    overflow-y: hidden;
 }
 
 // TODO: Review mx_GeneralButton usage to see if it can use a different class

res/css/views/elements/_InlineSpinner.scss

@@ -21,4 +21,12 @@ limitations under the License.
 .mx_InlineSpinner img {
     margin: 0px 6px;
     vertical-align: -3px;
+
+    animation: spin 1s linear infinite;
+}
+
+@keyframes spin {
+    100% {
+        transform: rotate(360deg);
+    }
 }

res/css/views/elements/_Spinner.scss

@@ -23,6 +23,16 @@ limitations under the License.
     flex: 1;
 }
 
+.mx_Spinner img {
+    animation: spin 1s linear infinite;
+}
+
+@keyframes spin {
+    100% {
+        transform: rotate(360deg);
+    }
+}
+
 .mx_MatrixChat_middlePanel .mx_Spinner {
     height: auto;
 }