Code Embed Not Sizing Correctly

I'm having trouble embedding a third-party map on my website. I've used the embed block and the code block and both will display but not at 100%. It shows up very narrow and I can't figure out how to make the block bigger so that it shows the full map. 

This is the code that the third-party gave me: 

<iframe style="height:100%;width:100%;" src="https://wandermaps.link/Tourism-Cares" title="Tourism Cares"></iframe>

Thank you! This worked, I appreciate your help 😀