adjust contrast of colors

equations/src/App.css

@@ -28,10 +28,24 @@
   color: #61dafb;
 }
 
+.mouseover{
+	color:lightgray;
+	cursor:pointer;
+}
+
+.exit{
+	color:#FFAAAA;
+}
+
 .mouseover:hover{
+	color:black;
 	cursor:pointer;
 }
 
+.exit:hover{
+	color:maroon;
+}
+
 @keyframes App-logo-spin {
   from {
     transform: rotate(0deg);