I’m pretty sure that Luís Pureza has solved his issue, but I found a really easy way to solve it changing only this:
If you have a table border like this one:
INPUT,TEXTAREA {
border-top: 1px solid #aaa
}
Change it to this one:
INPUT,TEXTAREA {
border-top: thin solid #aaa
}
I found this solution across this link: https://productforums.google.com/forum/#!topic/chrome/r1neUxqo5Gc
I hope it helps