How to define grid-columns without space between columns and rows

1.0photoHow to define grid-columns without space between columns and rows - Generat.. 2020-11-17 at 3.17.55 AMhttps://zight.com?utm_source=oembed_unfurl&utm_medium=oembedCreated with Zight187510https://p78.f0.n0.cdn.zight.com/items/ApuLZXZy/How%20to%20define%20grid-columns%20without%20space%20between%20columns%20and%20rows%20-%20Generat..%202020-11-17%20at%203.17.55%20AM.png<iframe src="https://share.zight.com/ApuLZXZy?embed=true" width="510" height="187" style="border:none" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowtransparency="true" allowfullscreen="true"></iframe>