There is a problem with bootstrap 5 You can see the problem when you add bootstrap css your project. <!-- CSS only --> <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-1BmE4kWBq78iYhFldvKuhfTAU6auU8tT94WrHftjDbrCEXSU1oBoqyl2QvZ6jIW3" crossorigin="anonymous">
There is a problem with bootstrap 5
You can see the problem when you add bootstrap css your project.