Please follow the procedure below:- 

1) To Install Embed code on your HTML website , Go To Final preview in Leadlock 

2) On right side Option 2-Embed code is available , Enter height and width if required , click on Copy to Clipboard button to copy embed code.

3) Open Any Text Editor like Notepad, Notepad++,Sublime,TextEdit etc

4) Paste your lead lock campaign embed code in editor and save file with " .html" extension

5) You can use campaign embed code in your HTML website by adding Embed code In Any Div tag