背景图像无显示（Laravel，CSS）

So I have this image and its working on the main page of the web that Im working but when I try to put image for background in every page that this button redirects:

<a href="{{url('building', $building->id)}}"class="btn btn-primary btn-sm">Offices</a>

It doesnt show any background image I put the png file in the public folder

This is the css for the main page its working

.buildingbg{
  background-image: url("bldg.png");
  background-repeat: repeat-y
  -webkit-background-size: cover;
  -moz-background-size: cover;
  -o-background-size: cover;
  background-size: cover;
  font-weight: 100;
  height: 100vh;
  margin: 0;

The reason it is not working is you are using page relative paths in your CSS.

It works on your home page because that is the site root. As you visit /page or some other page, because you are using page relative paths it will look for the image in the /page directory.

If it is working on your homepage, I am assuming you dropped bldg.png straight in the public/ directory, so simply add a slash in front to use site relative image paths.

 background-image: url("/bldg.png");

You should organize your images into a folder within the public directory though.