Bootstrap 4 center div
<div class="d-flex justify-content-start">...</div>
<div class="d-flex justify-content-end">...</div>
<div class="d-flex justify-content-center">...</div>
<div class="d-flex justify-content-between">...</div>
<div class="d-flex justify-content-around">...</div>
conteúdo do centro de Col bootstrap
<div class="row">
<div class="col-4 d-flex justify-content-center text-center">
// for image and text
</div>
</div>
ustify-content: flex-end
<div class="d-flex justify-content-end">...</div>
mostrar a coluna de flexão
.container {
display: flex;
flex-direction: column;
}
Flex wrap bootstrap
<div class="d-flex flex-wrap">...</div>
coluna de direcção flex de bootstrap
d-flex flex-column
flex de visualização de bootstrap
<div class="d-flex">I'm a flexbox container!</div>
flex direction column bootstrap 4
<div class="d-flex justify-content-start">...</div>
<div class="d-flex justify-content-end">...</div>
<div class="d-flex justify-content-center">...</div>
<div class="d-flex justify-content-between">...</div>
<div class="d-flex justify-content-around">...</div>