a7f78f08720da04dad7ca9c490d8fca072678a31
hiram
  Fri Nov 6 16:30:37 2020 -0800
vertical line is now three dark light dark so it shows up on any background refs #21980

diff --git src/hg/htdocs/style/mouseOver.css src/hg/htdocs/style/mouseOver.css
index 33ac9da..0eb83e4 100644
--- src/hg/htdocs/style/mouseOver.css
+++ src/hg/htdocs/style/mouseOver.css
@@ -1,25 +1,28 @@
 .mouseOverVerticalLine {
   position: fixed;
-  border-left: 2px solid orange;
-  margin-left: -1px;
-  height: 60px;
-  left: 0;
-  top: 0;
+  width: 1px;
+  background: #ffff00;
+  height: 100%;
   display: none;
   z-index: 999;
+  opacity: 1;
+  border-style: hidden solid hidden solid;
+  border-width: 1px;
+  border-color: #2222cc;
   pointer-events: none
 }
 
 .mouseOverText {
   position: fixed;
   left: 100px;
   top: 100px;
   width: auto;
   height: auto;
   background-color: #3333cc;
   color: #ffff00;
   display: none;
   opacity: 1;
   z-index: 1000;
+  border: 1px solid #ffff00;
   pointer-events: none
 }