Three columns

I created a subdivision into three columns in my homepage

[tx_row]
[tx_column size=”1/3″][tx_heading style=”default” heading_text=”Corso 3″ tag=”h2″ size=”24″ margin=”14″ align=”left”]<img class=”alignnone wp-image-150 size-large” src=”http://localhost:8888/prova1/wp-content/uploads/2015/06/Slider3-1024×683.png&#8221; alt=”” width=”604″ height=”403″ />[/tx_column]
[tx_column size=”1/3″][tx_heading style=”default” heading_text=”Corso 4″ tag=”h2″ size=”24″ margin=”14″ align=”left”]<img class=”alignnone wp-image-151 size-large” src=”http://localhost:8888/prova1/wp-content/uploads/2015/06/Slider4-1024×683.png&#8221; alt=”” width=”604″ height=”403″ />[/tx_column]
[tx_column size=”1/3″][tx_heading style=”default” heading_text=”Corso 5″ tag=”h2″ size=”24″ margin=”14″ align=”left”]<img class=”alignnone wp-image-148 size-large” src=”http://localhost:8888/prova1/wp-content/uploads/2015/06/Slider1-1024×683.png&#8221; alt=”” width=”604″ height=”403″ />[/tx_column]
[/tx_row]

But the picture in the middle is a little short compared to most others.
I don’t know how I can do to show a link, I’m working locally.

Can you help me?