Follow these steps to add a hamburger menu to the desktop header:

Theme Options > Header > Select a Header > Add Menu Element > Select Offcanvas right or left.

Under General > Custom Codes you can add your custom CSS, JS, HTML codes before closing head or before closing body tag.

1. Custom CSS – Add your custom CSS codes without <style> tag
2. Custom JS – Add your custom JS codes without <script> tag
3. Before closing Head – Add your custom HTML codes
4. Before closing Body– Add your custom HTML codes

• Custom Codes in Head or Body – You can add custom HTML codes, Shortcodes, custom JavaScripts code with script tag, Custom google codes such as meta tags, etc.