Answers for "justify align center bootstrap 4"

laravel artisan clear cache

//laravel artisan clear cache 
php artisan view:clear 
php artisan cache:clear
php artisan route:clear
php artisan config:clear

php artisan cache all

php artisan view:cache  
php artisan cache:cache 
php artisan route:cache 
php artisan config:cache

justify-content-between 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>

bootstrap justify-content-center for md

<div class="row justify-content-md-center"></div>

bootstrap display flex

<div class="d-flex">I'm a flexbox container!</div>