JSFiddle - React, Tailwind, and code Playground

HTML

<script src="//code.jquery.com/jquery-3.3.1.slim.min.js"></script>
<link rel="stylesheet" href="//stackpath.bootstrapcdn.com/bootstrap/4.1.0/css/bootstrap.min.css">
<script src="//cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.0/umd/popper.min.js"></script>
<script src="//stackpath.bootstrapcdn.com/bootstrap/4.1.0/js/bootstrap.min.js"></script>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css">
<!-- 
  Bootstrap docs: https://getbootstrap.com/docs
-->

<div class="container">
  <div class="row">
    <div class="col-12">
      <div class="card-deck three-col">
        <div class="rounded-rectangle-svs card current-proj">
          <h5 class="text-default"><b>Project 1</b></h5>
          <div class="row" style="overflow-x:auto;">
            <div class="col-md-8">
              <p class="">Lorem Ipsum is simply dummy text of the printing and typesetting industry. </p>
            </div>
            <div class="col-md-4 text-center">
              <h1 class="text-default"><b>86%</b></h1>
            </div>
          </div>
        </div>
        <div class="rounded-rectangle-svs card current-proj">
          <h5 class="text-primary"><b>Project 2</b></h5>
          <div class="row" style="overflow-x:auto;">
            <div class="col-md-8">
              <p class="">Lorem Ipsum is simply dummy text of the printing and typesetting industry. </p>
            </div>
            <div class="col-md-4 text-center">
              <h1 class="text-primary"><b>86%</b></h1>
            </div>
          </div>
        </div>
        <div class="rounded-rectangle-svs card current-proj">
          <h5 class="text-secondary"><b>Project 3</b></h5>
          <div class="row" style="overflow-x:auto;">
            <div class="col-md-8">
              <p class="">Lorem Ipsum is simply dummy text of the printing and typesetting industry. </p>
            </div>
            <div class="col-md-4 text-center">
              <h1...

SCSS

.row {
  background: #f8f9fa;
}

.card-deck {
  @media (min-width: 768px) {
    &.two-col {
      .card {
        flex-basis: calc(50% - 30px);
      }
    }
    
    &.three-col {
      .card {
        flex-basis: calc(33.33% - 30px);
      }
    }
  }
  
  .card {
    flex-basis: 100%;
  }
}