css auto-fit auto-fill code example
Example 1: grid repeating auto columns
/* To achieve wrapping, we can use the auto-fit or auto-fill keywords. */
grid-template-columns: repeat( auto-fit, minmax(250px, 1fr) );
Example 2: grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
grid-template-columns: repeat( 12, minmax(250px, 1fr) );