infinity-css-grid v1.0.3

// For 3 rows:

<div class="row">
  <div class="column">1</div>
  <div class="column">1</div>
  <div class="column">1</div>
</div>

.row{display: flex; flex-flow: row wrap}

.column{flex:1}

$ npm i infinity-css-grid

<link rel="stylesheet" href="https://unpkg.com/infinity-css-grid@1.0.3/grid.css">

This project is licensed under the MIT License