Bootstrap /Flex-Boxs / Grids
Bootstrap Introduction:- Get started with Bootstrap, the world’s most popular framework for building responsive, mobile-first sites. How To Accesses Bootstrap? First Link The Bootstrap CDN in HTML file in the header section. Like CSS CDN :- <link rel= "stylesheet" href= "https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css" integrity= "sha384-JcKb8q3iqJ61gNV9KGb8thSsNjpSL0n8PARn9HuZOnIxN0hoP+VmmDGMN5t9UJ0Z" crossorigin= "anonymous" > <script src= "https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/js/bootstrap.min.js" integrity= "sha384-B4gt1jrGC7Jh4AgTPSdUtOBvfO8shuf57BaghqFfPlYxofvL8/KUEfYiJOMMV+rV" crossorigin= "anonymous" ></script> Also JS CDN:- <script src= "https://code.jquery.com/jquery-3.5.1. slim.min.js" integrity= "sha384-DfXdz2htPH0lsSSs5n