easygrid

alternative : https://easycss.github.io/easygrid/break990.css

EasyGrid

An easy CSS grid for scaffolding, prototyping and testing your web projects

<link rel='stylesheet' href='https://easycss.github.io/easygrid/index.css'>

https://easycss.github.io/easygrid/index.css

Options

.row{
  font-size: .9rem;
}
@media screen and (max-width: 550px){
  .row{
    text-align: center;
  }
}