remove inner shadow of text input

[t0xy0u]

So I have a text input, im using html5, on chrome, and I want to change the look of a text input, I've removed the outline on focus (orange on chrome), I set the background to a light color \[code\]#f1f1f1\[/code\] but now there is like a thicker border on the top and left sides, like it's meant to look pushed in, when there is no change in background color this doesn't happen. How do I remove it? Sorry I can't provide a picture, on a mobile device. It happens on chrome, ie, and Firefox, can't test any others.