Hi,
What is your base Joomla Template? Each joomla template has its own override for joomla login module (mod_login).
If you want to same login module style as you see in the live demo:
demo.flexiblewebdesign.com/materialmart/ then
1- download the attached ZIP file (mod_login.zip)
Attachment mod_login.zip not found
2- Unzip the file and you should get a
/mod_login/ folder
3- upload the
/mod_login/ folder to this path:
//templates/YOUR_TEMPLATE/html/mod_login/
-- NOTICE: 99% you already have that folder in there, so; rename the old folder to /mod_login2/ instead of overwriting, so you can go back in case anything goes wrong
4- That's it. You should be good to go.
In case of any problem, let me know.