Answers for "bootstrap loader and bootloader"

bootstrap loader

<div class="spinner-border" role="status">
  <span class="sr-only">Loading...</span>
</div>

bootstrap loader

<div class="d-flex align-items-center">
  <strong>Loading...</strong>
  <div class="spinner-border ml-auto" role="status" aria-hidden="true"></div>
</div>

bootstrap loader

<div class="text-center">
  <div class="spinner-border" role="status">
    <span class="sr-only">Loading...</span>
  </div>
</div>

bootstrap loader

σsubject = "database" and price = "450" or year > "2010"(Books)