diff --git a/bases-js/script.js b/bases-js/script.js
index 4775147..9aa5304 100644
--- a/bases-js/script.js
+++ b/bases-js/script.js
@@ -81,6 +81,10 @@ console.log('document', document);
 let body = document.getElementById('body');
 console.log('body', body);
 
+let h = Math.random()*360;
+let s = Math.random()*100;
+let l = Math.random()*100;
+body.style.backgroundColor = `hsl(${h} ${s} ${l})`;
 
 let balle = document.createElement('div');
 balle.classList.add('balle');