load a fine in head uning java script code example
Example: javascript css link append
document.getElementsByTagName("head")[0].insertAdjacentHTML(
"beforeend",
"<link rel=\"stylesheet\" href=\"path/to/style.css\" />");
document.getElementsByTagName("head")[0].insertAdjacentHTML(
"beforeend",
"<link rel=\"stylesheet\" href=\"path/to/style.css\" />");