JSFiddle - React, Tailwind, and code Playground

by Amar Nyayapati

HTML

<style>
  button { display:block; font-size:12px; width:100px; }
  div { float:left; margin:10px; font-size:10px; 
        border:1px solid black; }
  span { color:blue; font-size:18px; }
  #inner { color:red; }
  td { width:50px; text-align:center; }
  </style>
  <script src="http://code.jquery.com/jquery-latest.js"></script>
</head>
<body>
  <div>
    <button>:nth-child(even)</button>
    <button>:nth-child(odd)</button>
    <button>:nth-child(3n)</button>

    <button>:nth-child(2)</button>
  </div>
  <div>
    <button>:nth-child(3n+1)</button>
    <button>:nth-child(3n+2)</button>

    <button>:even</button>
    <button>:odd</button>
  </div>
  <div><table>

    <tr><td>John</td></tr>
    <tr><td>Karl</td></tr>
    <tr><td>Brandon</td></tr>

    <tr><td>Benjamin</td></tr>
  </table></div>
  <div><table>
    <tr><td>Sam</td></tr>

  </table></div>
  <div><table>
    <tr><td>Glen</td></tr>
    <tr><td>Tane</td></tr>

    <tr><td>Ralph</td></tr>
    <tr><td>David</td></tr>
    <tr><td>Mike</td></tr>

    <tr><td>Dan</td></tr>
  </table></div>
  <span>
    tr<span id="inner"></span>

  </span>
<script>
    $("button").click(function () {
     var str = $(this).text();
     $("tr").css("background", "white");
     $("tr" + str).css("background", "#ff0000");
   
    <!--  $("#inner").text(str);-->
    });

</script>