<form>
<div class="form-group row">
<label for="inputEmail3" class="col-sm-2 col-form-label">Email</label>
<div class="col-sm-10">
<input type="email" class="form-control" id="inputEmail3" placeholder="Email">
</div>
</div>
<div class="form-group row">
<div class="col-sm-10 offset-sm-2">
<button type="submit" class="btn btn-primary">Sign in</button>
</div>
</div>
</form>
You don't need to remember all CSS classes. Just use the Bootstrap Editor instead.