Improve arguments reading in timeline

front/src/css/rule.css

@@ -109,6 +109,7 @@
   border-bottom-left-radius: 0.4em;
   border-bottom-right-radius: 0.4em;
   border-top: 1px solid #999;
+  z-index: 2;
 }
 .offenders .offenderButton .domTree {
   text-align: left;

front/src/css/timeline.css

@@ -268,7 +268,7 @@ input.textFilter {
   background: #fff;
   border: 2px solid #f1c40f;
   border-radius: 0.5em;
-  z-index: 1;
+  z-index: 2;
 }
 @media screen and (max-width: 1024px) {
   .detailsOverlay {