Fix column with for option input

app/modules/vote/templates/vote/view.j2

@@ -67,10 +67,10 @@
 			<div class="card-body">
 				<form class="row" method="post">
 					<input type="hidden" name="question_id" value="{{ question.id }}">
-					<div class="col-10">
+					<div class="col">
 				    	<input type="text" class="form-control" name="name" placeholder="Option" required>
 					</div>
-					<div class="col-2">
+					<div class="col-auto">
 					    <button type="submit" class="btn btn-primary">Add</button>
 					</div>
 				</form>