improve close button in sidebar

css/basic.css

@@ -25,6 +25,9 @@
 #dokuwiki__sidebar_header * {
 	display: inline-block;
 }
+#dokuwiki__sidebar_close_btn {
+	float: right;
+}
 #dokuwiki__sidebar_show_btn {
 	position: fixed;
 	top: 0;