its probably really easy but i dnt no how

first thanks for lookin 2 c if you can help me ?

i have a website that has a side navigation bar, like most sites do, and everytime i want 2 change one thing i currently have to go through each page and edit the html to what i want. what i really need to do, is create a kinda of unified call code (if that makes sence) so that it simply calls the html code from another flie or place on the internet. hopefully this will mean i can just update the html in a single file. any help would b gr8. email me at [email][email protected][/email] also if you have nouthing to do an are extreamly bored, check out my site that im workin on (ma first) see if theres anything else you can help me with. its [url]www.gunmetal.org.uk[/url] im the drummer ? in the local band which is who the website is for

thanks to anyone who can help me

Also in #Full-stackDeveloper _↴