ThaiSEOBoard.com

<style type='text/css'>
body{
     -webkit-filter: grayscale(100%); /* Chrome 19+, Safari 6+, Safari 6+ iOS */
     -moz-filter: grayscale(100%);
    -o-filter: grayscale(100%);
      filter: url("data:image/svg+xml;utf8,<svg xmlns=\'http://www.w3.org/2000/svg\'><filter id=\'grayscale\'><feColorMatrix type=\'matrix\' values=\'0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0 0 0 1 0\'/></filter></svg>#grayscale");
    filter: grayscale(100%); /* IE6-9 */
}
</style>

https://th.wordpress.org/plugins/grayscale-images/

<div style="background:url([url]https://www.img.in.th/images/0d6705584e9dbc8a7ff50dd930c75966.png[/url]) top repeat-x; height:39px; width:100%; float:none; margin:0 0 10px 0 !important;">
<div style="float:left; width:67px;"><img src="https://www.img.in.th/images/0d6705584e9dbc8a7ff50dd930c75966.png" alt="" /></div>
<div style="float:right; width:67px;"><img src="https://www.img.in.th/images/0d6705584e9dbc8a7ff50dd930c75966.png" alt="" /></div>
<div style="float:none; margin:0 68px; text-align:center !important;"><a href="#" target="_blank" border="0"><img src="https://www.img.in.th/images/0d6705584e9dbc8a7ff50dd930c75966.png" /></a></div>
</div>