diff --git a/docs.it4i/software/viz/line-numbers.css b/docs.it4i/software/viz/line-numbers.css
deleted file mode 100644
index 367c7cc3014dcd0d3bf637670f3198fd489096bf..0000000000000000000000000000000000000000
--- a/docs.it4i/software/viz/line-numbers.css
+++ /dev/null
@@ -1,16 +0,0 @@
-.line-numbers{
-  /* Set "line-numbers-counter" to 0 */
-  counter-reset: line-numbers-counter;
-}
-
-.line-numbers .remark-code-line::before {
-  /* Increment "line-numbers-counter" by 1 */
-    counter-increment: line-numbers-counter;
-    content: counter(line-numbers-counter);
-    text-align: right;
-    width: 55px;
-    border-right: 1px solid #aaa;
-    display: inline-block;
-    margin-right: 10px;
-    padding: 0 5px;
-}
\ No newline at end of file