bootstrap smallbox align left code example
Example 1: 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>
Example 2: card center in bootstrap
.card {
margin: 0 auto; /* Added */
float: none; /* Added */
margin-bottom: 10px; /* Added */
}