Possible Chrome issue

I am having an issue with the background of the text fields in the log in form that only appears in Chrome. The background turns white and overwrites the colour I have set for the field box – it’s fine in Safari and Firefox though.

I thought it maybe related to ‘input:-webkit-autofill’ issue that Chrome applies a background on auto-fill fields, but any css I try does not appear to help.

Have you come across this before? Thanks.