How can I fix a faulty mobile menu after a sticky announcement bar attempt?

[marketlink]

I was trying to make my announcement bar sticky and I messed up with the mobile menu, it now looks like this.

[Small_Task_Help]

Hi,

Instead of directly editing the code, try to use the theme customization options available in your Shopify admin. or Use a Duplicate Theme or Disable Recently Added Code .If you do not know coding as well as customization you can contact us. Details are in the signature