diff --git a/resources/assets/sass/_tinymce.scss b/resources/assets/sass/_tinymce.scss
index b8394b25b..92af39a87 100644
--- a/resources/assets/sass/_tinymce.scss
+++ b/resources/assets/sass/_tinymce.scss
@@ -1,16 +1,13 @@
 
-
-.mce-tinymce.mce-container.fullscreen {
+.mce-tinymce.mce-container.mce-fullscreen {
   position: fixed;
   top: 0;
   height: 100%;
-  width: 825px;
+  width: 100%;
   max-width: 100%;
-  margin-left: -$-s;
-  box-shadow: 0 0 4px 2px rgba(0, 0, 0, 0.08);
+  z-index: 100;
 }
 
-
 .mce-tinymce {
   .mce-panel {
     background-color: #FFF;