I need codemirrors block no space between code line

I use the codemirrors block first time.
I don’t know how to change the properties,only edit in code mode.
Could you have me to change the head code for me?
head code now:<div <pre are put here, or it does not display to you

class=”wp-block-codemirror-blocks code-block “>
class=”CodeMirror” data-setting=”{"mode":"python","mime":"text/x-python","theme":"Eclipse","lineNumbers":true,"lineWrapping":false,"styleActiveLine":false,"readOnly":true,"align":""}”>

current problem:
there is a big space between code line, no highlighter color .

• This topic was modified 6 years, 1 month ago by liwensoft.
• This topic was modified 6 years, 1 month ago by liwensoft.
• This topic was modified 6 years, 1 month ago by liwensoft.

The page I need help with: [log in to see the link]