Update style.css

style.css

@@ -11,7 +11,7 @@
   line-height: 1.5rem !important;
 }
 input::-webkit-slider-runnable-track {
-  background: #293139 !important;
+  background: rgba(0,0,0,.1) !important;
   border-radius: 2px !important;
 }