<!doctype html>
<style>
  body {
    --peek: LightGreen;
  }
  .bg {
    background-color: var(--peek);
    background-image: linear-gradient(45deg, orange 0px, orange 5px, gainsboro 3px, gainsboro 25%, rgba(160,160,160,0.5) 25%, rgba(160,160,160,0.5) 50%, silver 50%, silver 75%, darkgray 75%, darkgray 99%, blue 99%);
    background-size: 230px 50px;
    background-repeat: no-repeat; /* FF defaults to no-repeat, Chrome to repeat */
  }
  main > * {
    box-sizing: border-box;
  }
  .table {
    border: 10px solid yellow;
    padding: 10px;
    width: 290px;
  }
  .row {
    margin-left: 10px;
    margin-top: 10px;
    width: 230px;
    height: 50px;
  }
  .cell {
    margin: 10px;
    margin-right: 5px;
    margin-left: 5px;
    width: 50px;
    height: 50px;
    display: inline-block;
    vertical-align: top;
  }
  .firstcell {
    margin-left: 10px;
  }
  .bigsquarecell {
    margin:10px;
    margin-left: 5px;
    margin-right: 5px;
    margin-bottom: 5px;
    width: 110px;
    height: 110px;
    display: inline-block;
    vertical-align: top;
    background-position-x: -60px;
  }
  .c2 {
    background-position-x: -60px
  }
  .c3 {
    background-position-x: -120px;
  }
  .c4 {
    background-position-x: -180px;
  }
  .bottomrow > .cell {
    margin-top: 5px;
  }
</style>
<main>
<div class="table">
<div class="row bg"></div>
<div><div class="cell firstcell bg"></div><div class="bigsquarecell bg"></div><div class="cell c4 bg"></div></div>
<div class="bottomrow"><div class="cell firstcell bg"></div><div class="cell c2 bg"></div><div class="cell c3 bg"></div><div class="cell c4 bg"></div>
</div>
</main>
