Bootstrap modal appearing under background

Question

I have used the code for my modal straight from the Bootstrap example, and have included only the bootstrap.js (and not bootstrap-modal.js). However, my modal is appearing u

Answer 1

I tried all options supplied above but didn't get it to work using those.

What did work: setting the z-index of the .modal-backdrop to -1.

.modal-backdrop {
  z-index: -1;
}