fixed style, focus outline none at container

Author: hunterliu1003

lib/VueFinalModal.vue

@@ -33,7 +33,7 @@
       <div
         v-show="visibility.modal"
         ref="vfmContainer"
-        class="vfm__container vfm--absolute vfm--inset"
+        class="vfm__container vfm--absolute vfm--inset vfm--outline-none"
         :class="[classes, { 'vfm--cursor-pointer': clickToClose }]"
         :aria-expanded="visibility.modal.toString()"
         role="dialog"
@@ -314,6 +314,9 @@ export default {
 .vfm--cursor-auto {
   cursor: auto;
 }
+.vfm--outline-none:focus {
+  outline: none;
+}
 .vfm-enter-active,
 .vfm-leave-active {
   transition: opacity 0.2s;