main.css

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

.parent {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-evenly;
  align-items: center;
  width: 100%;
  text-align: center;

}

.container {
  width: 100%;
  background-color: #EEEEEE;
  margin: 20px;
  font-family: Arial, Helvetica, sans-serif;
  padding: 15px;
  line-height: 26px;
}

.header {
  font-weight: bold;
}

@media (min-width: 768px) {
  .parent {
    display: grid;
    grid-template-columns: 10px 1fr 1fr 1fr 10px;
    grid-gap: 20px;
    grid-template-rows: 1fr 1fr;
    margin-top: 20px;

  }

  .container {
    margin: 0;
    padding: 10px;
  }

  .container:nth-child(1) {
    grid-area: 1/2/2/span 3;
  }

  .container:nth-child(2) {
    grid-area: 2/2/3/3;
  }

  .container:nth-child(3) {
    grid-area: 2/3/3/4;
  }

  .container:nth-child(4) {
    grid-area: 2/4/3/5;
  }

  .header {
    color: #FF0000;
  }
}

@media (min-width: 992px) {
  .parent {
    grid-template-columns: 10px 1fr 1fr 1fr 1fr 10px;
    grid-template-rows: 1fr 1fr 1fr;


  }

  .container:nth-child(1) {
    grid-area: 1/2/2/span 4;
  }

  .container:nth-child(2) {
    grid-area: 2/2/3/span 2;
  }

  .container:nth-child(3) {
    grid-area: 2/4/3/span 2;
  }

  .container:nth-child(4) {
    grid-area: 3/2/4/span 4;
  }

  .header {
    color: #009688;
  }
}