Bootstrap CSS class .m-md-0

    <div class="m-md-0 p-1 bg-primary d-inline-block">Spaced Div</div>
    <div class="m-md-0 p-1 bg-primary d-inline-block">Spaced Div</div>
    <div class="m-md-0 p-1 bg-primary d-inline-block">Spaced Div</div>
    <div class="m-md-0 p-1 bg-primary d-inline-block">Spaced Div</div>