The 3 images at the top of the page are in a table that has a fixed pixel height which is retained even when the images are scaled down for a mobile screen.
I suggest that the table height not be specified and all the image heights be made equal to the desired height on the desktop version
See http://m.planning.nsw.gov.au/en-us/deliveringhomes/urbanactivation.aspx
The 3 images at the top of the page are in a table that has a fixed pixel height which is retained even when the images are scaled down for a mobile screen.
I suggest that the table height not be specified and all the image heights be made equal to the desired height on the desktop version