body {
       margin: 0;
       font-family: Arial, sans-serif;
   }

   header {
       position: -webkit-sticky; /* For Safari */
       position: sticky;
       top: 0;
       width: 100%;
       background-color: #333;
       z-index: 1000; /* Ensure the header stays above other content */
   }

/*footer {
    position: fixed;
    height: 60px;
    bottom: 0;
    width: 100%;*/
}