Dropzone should be fixed to viewport, instead of fixed to sibling

element

css/bootstrap/privatebin.css

@@ -82,7 +82,7 @@ body.loading {
 
 #dropzone {
 	text-align: center;
-	position: absolute;
+	position: fixed;
 	top: 0;
 	left: 0;
 	width: 100%;

css/privatebin.css

@@ -117,7 +117,7 @@ h3.title {
 
 #dropzone {
 	text-align: center;
-	position: absolute;
+	position: fixed;
 	top: 0;
 	left: 0;
 	width: 100%;