ширина ввода меняется для одного и того же имени класса
<td><form><div class="row"><div class="form-group col-sm-10"><input type="url" id="url" class="form-control form-control-sm" placeholder="Enter S3 Bucket URL" value=""></div><div class="form-group col-sm-10"><div class="form-check form-check-inline"><input type="text" class="form-control form-control-sm" placeholder="AWS ID" value=""></div></div><div class="form-group col-sm-10"><div class="form-check form-check-inline"><input type="text" class="form-control form-control-sm" placeholder="AWS SECRET KEY" value=""></div></div></div></form></td>