ustify-contenido: flex-end
<div class="d-flex justify-content-end">...</div>
flex wrap bootstrap
<div class="d-flex flex-wrap">...</div>
alighn right boostrap 4
<div class="float-left">Float left on all viewport sizes</div><br>
<div class="float-right">Float right on all viewport sizes</div><br>
<div class="float-none">Don't float on all viewport sizes</div>
pantalla flex usnig bootstrap
<div class="d-flex p-2 bd-highlight">I'm a flexbox container!</div>