TailwindCSS - Set flex child width to fill up whole parent width - css

Question

I have this react component:
const Status = () => {
return (
<div className='h-screen bg-gray-800 flex justify-center items-center p-16'>
<div className='bg-gray-700 px-8 py-4 rounded w-full'>
<h2 className='text-2xl text-gray-100 font-medium'>Plex Server</h2>
<h3 className='text-base text-gray-400'>Added 22/10/2021</h3>
<div className='flex flex-row w-full space-x-1 my-4'>
{[...Array(30)].map((i, idx) => (
<div key={idx} className='h-8 w-1 bg-green-400 rounded'></div>
))}
</div>
</div>
</div>
);
};
export default Status;
I'm using it to render 30 flex children with hard-coded width of 4px (w-1 class). Here is the result:
Is there a way to set children width automatically so it would fill up parent space equaly?
For example: parent width is 100px and this time I want to render only 10 elements. With current code it will take only 76px (40px from child width + 36px from 4px space between them). Is there a way to set children width automatically to ~6px?

Answer 1

You can do it by using flex-1 instead of w-1 and it will take width automatically such as:
const Status = () => {
return (
<div className='h-screen bg-gray-800 flex justify-center items-center p-16'>
<div className='bg-gray-700 px-8 py-4 rounded w-full'>
<h2 className='text-2xl text-gray-100 font-medium'>Plex Server</h2>
<h3 className='text-base text-gray-400'>Added 22/10/2021</h3>
<div className='flex flex-row w-full space-x-1 my-4'>
{[...Array(30)].map((i, idx) => (
<div key={idx} className='h-8 flex-1 bg-green-400 rounded'></div>
))}
</div>
</div>
</div>
);
};
export default Status;
Here is a working example of it: https://play.tailwindcss.com/rYFniYTQe6
Here is how it will look: