diff -r 989b9c36b849 -r 38e1a1446319 cms/app-client/app/styles/app.scss
--- a/cms/app-client/app/styles/app.scss	Mon Jul 04 11:15:25 2016 +0200
+++ b/cms/app-client/app/styles/app.scss	Mon Jul 04 12:26:19 2016 +0200
@@ -62,6 +62,7 @@
 
 .corpus-window {
     overflow: hidden;
+    position: relative;
 }
 
 body.tabs-discours .corpus-app-container,
@@ -82,6 +83,7 @@
     box-shadow: -4px 0px 8px -4px #59626b;
 }
 
+.corpus-app-modal,
 .corpus-app-container,
 .corpus-app-wrapper {
     box-sizing: border-box;
@@ -89,11 +91,21 @@
     width: 50%;
 }
 
+.corpus-app-modal,
 .corpus-app-container {
     overflow: hidden;
     display: block;
+    border-top: none;
+}
+
+.corpus-app-modal {
+    position: absolute;
+    top: 0px;
+    left: 0px;
+}
+
+.corpus-app-container {
     float: left;
-    border-top: none;
 }
 
 .corpus-app-wrapper {