Editing Custom CSS

Hi, im editing the custom CSS eveything works correct and i changed color and all but one thing when i check “Remember Me” option it shows this > F147

please see the screenshot below:

http://i1144.photobucket.com/albums/o492/KaddirB/Untitled-1_zps9d552f2b.png

i tried removing the F147 but than iam not able to check the remember me option any fix for this? thanks in advance!

https://ww.wp.xz.cn/plugins/custom-login/