Big space after comment and before footer

 Goto Layout, Edit HTML and click the Expand Checkbox. Then look for some code that looks like this.

 frameborder="0" height="410" id="comment-editor" 

Look at the bold part. You should be able to change that height value to a smaller one

first find frameborder (Ctrl+F) 

 

 frameborder="0" height="410" id="comment-editor" 

 

now change the 410 to 210 save and then see your blog preview you will find that the space is just gone

happy blogging!

 

 

Note:

        In your HTML there will be two frameborder but you will do this change on the 2nd one