Answers for "center bootstrap row"

bootstrap center align columns

<!-- Center columns in a Row -->
<div class="row d-flex justify-content-center text-center">
    <div class="col-4">
        // Add Content
    </div>
    <div class="col-4">
        // Add Content
    </div>
    <div class="col-4">
        // Add Content
    </div>
</div>

.col-12 bootstrap

.col-12{
	flex: 0 0 100%;
	max-width: 100%;
}