Answers for "bootstrap-fileinput example"

bootstrap input file

<div class="custom-file">
 <input type="file"  class="custom-file-input" id="inputGroupFile01">
<label class="custom-file-label" for="inputGroupFile01">Choose file</label>
</div>

input file type bootstrap

<div class="mb-3">
  <label for="formFileSm" class="form-label">Small file input example</label>
  <input class="form-control form-control-sm" id="formFileSm" type="file">
</div>