Index: gc_lang/fr/webext/content_scripts/panel_creator.js
==================================================================
--- gc_lang/fr/webext/content_scripts/panel_creator.js
+++ gc_lang/fr/webext/content_scripts/panel_creator.js
@@ -78,11 +78,12 @@
     hide () {
         this.xPanelNode.style.display = "none";
     }
 
     center () {
-        this.xPanelNode.style = `top: 50%; left: 50%; width: ${this.nWidth}px; height: ${this.nHeight}px; margin-top: -${this.nHeight/2}px; margin-left: -${this.nWidth/2}px;`;
+        let nHeight = window.innerHeight-100;
+        this.xPanelNode.style = `top: 50%; left: 50%; width: ${this.nWidth}px; height: ${nHeight}px; margin-top: -${nHeight/2}px; margin-left: -${this.nWidth/2}px;`;
     }
 
     stickToLeft () {
         let nHeight = window.innerHeight-100;
         this.xPanelNode.style = `top: 50%; left: -10px; width: ${this.nWidth}px; height: ${nHeight}px; margin-top: -${nHeight/2}px;`;