adjustment

src/client/styles/scss/_mixins.scss

@@ -240,7 +240,7 @@
       z-index: $zIndex;
       width: 100%;
       height: $borderLength;
-      margin-left: -1px;
+      margin-left: -0.5px;
       content: '';
       border-left: 1px solid $borderColor;
       transition: border-color 0.15s ease-in-out;