JSFiddle - React, Tailwind, and code Playground

HTML

<div id="container">
    <div class="finder">
        <div class="block1">
            <div id="One">One</div>
            <div id="two">Two</div>
            <div id="three">Three</div>
            <div id="four">Four</div>
        </div>
        <div class="block1">
            <div id="two">Two</div>
        </div>
        <div class="block1">
            <div id="three">Three</div>
        </div>
        <div class="block1">
            <div id="four">Four</div>
        </div>
        <div class="block1">
            <div id="five">Five</div>
        </div>
        <div class="block1">
            <div id="six">Six</div>
        </div>
        <div class="block1">
            <div id="seven">Seven</div>
        </div>
        <div class="block1">
            <div id="eight">Eight</div>
        </div>
        <div class="block1">
            <div id="nine">Nine</div>
        </div>
        <div class="block1">
            <div id="ten">Ten</div>
        </div>
        <div class="block1">
            <div id="eleven">Eleven</div>
        </div>
        <div class="block1">
            <div id="twelve">Twelve</div>
        </div>
    </div>
    <div class="button">
        <div id="startButton">
            <button>Start</button>
        </div>
    </div>
</div>

CSS

#container {
    float: left;
    min-height: 300px;
    width: 100%;
    background:#E6EEEE;
}
.finder {
    background: none repeat scroll 0 0 grey;
    border: 1px solid darkcyan;
    float: left;
    min-height: 300px;
    width: 46%;
}
.block1 {
    background: none repeat scroll 0 0 #FEFEFE;
    border: 1px solid;
    cursor: pointer;
    margin: 11px;
    min-height: 100px;
    width: 20%;
    float:left;
}
#startButton {
    margin-top: 336px;
}

JavaScript

$(function () {
     $("input[type=submit], button")
         .button()
         .click(function (event) {
         event.preventDefault();
     });
     $("#one").css('display', 'block');
     $("#two").css('display', 'none');
     $("#three").css('display', 'none');
     $("#four").css('display', 'none');
     $(".block1").click(function () {
         $(this).text("New value")
     });
 });