< src="http://whitesplumbingandheating.co.uk/wp-content/uploads/2014/06/cosy-lounge-warm-radiators-300x225.jpg" class="attachment-medium size-medium" alt="Cosy lounge warm radiators" srcset="http://whitesplumbingandheating.co.uk/wp-content/uploads/2014/06/cosy-lounge-warm-radiators-300x225.jpg 300w, http://whitesplumbingandheating.co.uk/wp-content/uploads/2014/06/cosy-lounge-warm-radiators-267x200.jpg 267w, http://whitesplumbingandheating.co.uk/wp-content/uploads/2014/06/cosy-lounge-warm-radiators.jpg 500w" sizes="(max-width: 300px) 100vw, 300px" />