Breakpoints

Breakpoints are customizable widths that determine how your responsive layout behaves across device or viewport sizes in Bootstrap.

A breakpoint, in the context of web development and responsive design, refers to a specific point at which a website's layout or styling changes to accommodate different screen sizes or devices. Breakpoints are a crucial aspect of creating responsive websites that look and function well across a variety of devices, such as desktops, tablets, and smartphones.

Desktops and Laptops: Usually, the default styles are applied for larger screens.

@media only screen and (min-width: 768px) {
/* Styles for screens with a minimum width of 768 pixels (tablets and larger) */
}

Tablets:
@media only screen and (min-width: 600px) and (max-width: 767px) { /* Styles for screens between 600 and 767 pixels (tablets) */ }

 
Smartphones:
@media only screen and (max-width: 599px) { /* Styles for screens with a maximum width of 599 pixels (smartphones) */ }