It seems like your template is overriding some of the styles built-in to the SCLogin module. From the image you provided, it's impossible to understand exactly where the conflict is coming from.
To override SCLogin styles, or to change the output and CSS to match your template, please see our
SCLogin theme guide
. Unfortunately, every template is different, and we can't provide styling assistance to match every template out there. I hope the theme information helps you to implement any changes necessary for our module to match your template.
Thanks,
Alex