bootstrap 4 focus code example

Example 1: remove the glow in bootstrap input

.form-control:focus {
  box-shadow: none;
}

Example 2: bootstrap range input

<form>
  <div class="form-group">
    <label for="formControlRange">Example Range input</label>
    <input type="range" class="form-control-range" id="formControlRange">
  </div>
</form>