We can create a <link> element via the document.createElement()
method:
var x = document.createElement("LINK");
Click the button to create a LINK element.
<!DOCTYPE html> <html> <head> </head>/*from w w w .ja v a 2s . co m*/ <body> <button onclick="myFunction()">Test</button> <h1>Header</h1> <script> function myFunction() { var x = document.createElement("LINK"); x.setAttribute("rel", "stylesheet"); x.setAttribute("type", "text/css"); x.setAttribute("href", "style.css"); document.head.appendChild(x); } </script> </body> </html>