JSFiddle - React, Tailwind, and code Playground

HTML

<div class="ProcOuterDiv"><div data-val1="1" onclick="SelectProc(this);" class="Proc">Cr</div></div><!--
--><div class="ProcOuterDiv"><div data-val1="2" onclick="SelectProc(this);" class="Proc">Br</div></div><!--
--><div class="ProcOuterDiv"><div data-val1="3" onclick="SelectProc(this);" class="Proc">Ca</div></div><!--
--><div class="ProcOuterDiv"><div data-val1="4" onclick="SelectProc(this);" class="Proc">Fill</div></div><!--
--><div class="ProcOuterDiv"><div data-val1="5" onclick="SelectProc(this);" class="Proc"></div></div><!--
--><div class="ProcOuterDiv"><div data-val1="6" onclick="SelectProc(this);" class="Proc">Im</div></div><!--
--><div class="ProcOuterDiv"><div data-val1="7" onclick="SelectProc(this);" class="Proc">RC</div></div><!--
--><div class="ProcOuterDiv"><div data-val1="8" onclick="SelectProc(this);" class="Proc">Den</div></div><!--
--><div class="ProcOuterDiv"><div data-val1="9" onclick="SelectProc(this);" class="Proc">MOB</div></div><!--
--><div class="ProcOuterDiv"><div data-val1="10" onclick="SelectProc(this);" class="Proc">Im</div></div><!--
--><div class="ProcOuterDiv"><div data-val1="11" onclick="SelectProc(this);" class="Proc">SP</div></div>

CSS

<style type="text/css">
    .ProcOuterDiv{
        #margin:4px 5px 4px 5px;
        display:inline-block;
        height:26px;
        width:26px;
    }
    .Proc{
        margin:2px 2px 2px 2px;
        height:23px;
        width:23px;
        #padding:2px 2px 2px 2px;
        border: 3px solid #A3A0FA;
        box-shadow: 0px 1px 1px transparent inset, 0px 0px 8px transparent;
        border-radius: 1px;
        text-align:center;
    }
    .Proc:hover{
        border: 3px solid #F77C60;
        border-radius: 5px;
        cursor:pointer;
        box-shadow: 0px 1px 1px rgba(0, 0, 0, 0.075) inset, 0px 0px 8px rgba(252, 69, 69, 0.8);
    }
</style>