diff --git a/Plugins,-Tools-and-Hardware.md b/Plugins,-Tools-and-Hardware.md
index 667e0e9..b6b7d3b 100644
--- a/Plugins,-Tools-and-Hardware.md
+++ b/Plugins,-Tools-and-Hardware.md
@@ -25,6 +25,9 @@ https://github.com/Sonaryr/reveal.js-otf-fragment-order
 Formula rendering with KaTeX (instead of MathJax)  
 https://github.com/j13z/reveal.js-math-katex-plugin
 
+Focus on specific lines of code blocks  
+https://github.com/d10/reveal-code-focus
+
 ## Tools
 Useful tools for working with reveal.js.