komik olabilir ama yeni basladigim icin tam olarak beceremedim :/

hocalarim css butonu konumlandirmak icin kodlari tam olarak nereye yazmaliyim, nasil yazmaliyim.

github butonu farkli bir konuma tasimak istiyorum ;
<!DOCTYPE html>
<html lang="en">
<head>
   <meta charset="UTF-8">
   <title>Joddey - Yusuf Can YILDIRIM</title>
   <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
   <script>
      $(function(){
 
         $.background = function(){
  
             var width = $(window).width();
             var height = $(window).height();
             $("img.background").css({
                
               "width" : width + "px",
               "height" : height + "px"
                
             });
            
         }
 
         $.background();
 
 
         var page_height = $(window).height();
 
         $(".home-and-sale").css("line-height", page_height + "px");
 
      });
   </script>
   <style>
 
      body {
        margin: auto
      }
 
      .background {
        position: fixed;
        left: 0;
        top: 0;
        z-index: -1;
      }
 
      .home-and-sale {
         text-align: center;
      }
 
      .home-and-sale img {
         padding: 25px;
      }
    
   </style>
</head>
<body>
   <img src="joddey.png" alt="" class="background" />
   <div class="home-and-sale">
      <a href="https://www.joddey.com/html"><img src="https://cdn3.iconfinder.com/data/icons/social-media-2169/24/social_media_social_media_logo_github_2-64.png" alt="" class="sale">
      </a>
        
   </div>
</body>
tesekkurler hocalarim

joddey.com