remove inner shadow of text input

border-style:solid; will override the inset style. Which is what you asked.

border:none will remove the border all together.

border-width:1px will set it up to be kind of like before the background change.

border:1px solid #cccccc is more specific and applies all three, width, style and color.

Example: https://jsbin.com/quleh/2/edit?html,output

This is the solution for mobile safari:

  appearance: none;
  -moz-appearance: none;
  -webkit-appearance: none;

as per https://developer.mozilla.org/en-US/docs/Web/CSS/appearance

and as suggested here: Remove textarea inner shadow on Mobile Safari (iPhone)

None of the solution are working currently. Here is my solution. You can add prefixes.

box-shadow: inset 0px 0px 0px 0px red;

Add border: none or border: 0 to remove border at all, or border: 1px solid #ccc to make border thin and flat.

To remove ghost padding in Firefox, you can use ::-moz-focus-inner:

::-moz-focus-inner {
    border: 0;
    padding: 0;
}

See live demo.

Set border: 1px solid black to make all sides equals and remove any kind of custom border (other than solid). Also, set box-shadow: none to remove any inset shadow applied to it.