Adjusting height on a code block

I've inserted a code block for an idx feed integration (real estate property search). The code is functioning, however I can only adjust the width of the code block, not the height.  Does the actual code need to be modified? Or is there a simple fix with spacers / other squarespace tools?  I am not a coding person - this is html spat out by a real estate company.  

https://www.coloradorootshometeam.com/featured-listings   password:  12345

Thank you in advance for any input!!!

20 minutes ago, natalief said:

I've inserted a code block for an idx feed integration (real estate property search). The code is functioning, however I can only adjust the width of the code block, not the height.  Does the actual code need to be modified? Or is there a simple fix with spacers / other squarespace tools?  I am not a coding person - this is html spat out by a real estate company.  

https://www.coloradorootshometeam.com/featured-listings  password:  12345

Thank you in advance for any input!!!

You can set the iframe height directly like so

<iframe src="https://matrix.recolorado.com/Matrix/public/IDX.aspx?idx=a1972f5f" width="100%" height="1000px" frameborder="0" marginwidth="0" marginheight="0"></iframe>

Thank you so much!