JSFiddle - React, Tailwind, and code Playground

HTML

<div class="row">
   <div class="col-6">
     <p>
       du contenu
     </p>
   </div>
   <div class="col-6">
    <p>
     du contenu
    </p>
   </div>
</div>
<div class="row">
   <div class="col-6">
    <p>
     du contenu
    </p>
   </div>
   <div class="col-6">
     <p>
      du contenu
     </p>
   </div>
</div>

CSS

/* custom grid */

.row{
    padding: 10px;
}

[class*="col-"] {
    width: 100%;
}

@media screen and (min-width: 768px){

    /* Columns */

    .col-1 {width: 8.33%;}
    .col-2 {width: 16.66%;}
    .col-3 {width: 25%;}
    .col-4 {width: 33.33%;}
    .col-5 {width: 41.66%;}
    .col-6 {width: 50%;}
    .col-7 {width: 58.33%;}
    .col-8 {width: 66.66%;}
    .col-9 {width: 75%;}
    .col-10 {width: 83.33%;}
    .col-11 {width: 91.66%;}
    .col-12 {width: 100%;}

    /* Each Column */

    [class*="col-"] {
        float: left;
    }

    /* Each Row */

    .row::after {
        content: "";
        clear: both;
        display: block;
    }


    .row {
        max-width: 1120px; 
        margin: 0 auto;
    }


}