Hi Ciarian,
thank you for the fast response!
here the link
http://www.hofstettentreffen.de/2023/
boxes around the arrows i have just changed:
in template.css by setting webkit-appearance to "none" ... former "button"
button,[type=button],[type=reset],[type=submit]{-webkit-appearance:
none}
button:not(:disabled),[type=button]:not(:disabled),[type=reset]:not(:disabled),