I have some HTML code that produces a ticker at the bottom of the page. But I have to put it into every page and changes have to be made individually on each page.
Is there a way to have HTML global so that I write it once and it appears on every page?
Depends on what theme you are using, some have a footer setting, other than that you’d need to use a plugin to add code to header or footer unless you have themer, then you could make a footer template and have it display on all pages