Hi Shaik,
I think IE renders the styles bit differently compared to the advanced browsers hence the placeholder styles may not be applied appropriately. You will need to apply custom styles to your username and password inputs if you want to fix this, have a look at https://stackoverflow.com/questions/22199047/placeholder-css-not-being-applied-in-ie-11 and https://css-tricks.com/almanac/selectors/p/placeholder/ for what styles to apply.
Hope this helps!