How to add conditional style in w2ui grid to highlight individual cell?

Add following while preparing records array:

    'w2ui':{style: {
      10: ($(this).attr("ows_Column1")=="Approved")?"background-color: green":"red",
      11: ($(this).attr("ows_Column2")=="Approved")?"background-color: yellow":"",
      }}


To highlight specific header:

<style type="text/css">
td[col="6"].w2ui-head,td[col="7"].w2ui-head {
    border:dashed 2px #0099f8 !important;
    font-weight:bold;
}
</style>