https://skaitechalbania.github.io/Css-Js/

in the top of the html

  <link rel="stylesheet" href="https://skaitechalbania.github.io/Css-Js/1.css" /> 
  <link rel="stylesheet" href="https://skaitechalbania.github.io/Css-Js/2.css" />
  <script src="https://skaitechalbania.github.io/Css-Js/1.part1.js"></script> 
  <script src="https://skaitechalbania.github.io/Css-Js/2.part2.js"></script> 

in the end of the html

  <script src="https://skaitechalbania.github.io/Css-Js/1.js"></script>
  <script src="https://skaitechalbania.github.io/Css-Js/2.js"></script>
  <script src="https://skaitechalbania.github.io/Css-Js/3.js"></script> 
  <script src="https://skaitechalbania.github.io/Css-Js/4.js"></script>