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Firefox/safari Setting Height As [specified Height - Padding - Border] For Input[type=button]

When I use the following CSS: input[type=button] { background-color: white; border: 1px solid black; font-size: 15px; height: 20px; padding: 7px; } with this HTML:

Solution 1:

Form elements have traditionally had a width/height that includes their padding/border, because they were originally implemented by browsers as OS-native UI widgets, where CSS had no influence over the decorations.

To reproduce this behaviour, Firefox and others render some form fields (select, button/input-type-button) with the CSS3 box-sizing style set to border-box, so that the width property reflects the entire rendered area width including the border and padding.

You can disable this behaviour with:

select, button {
    box-sizing: content-box;
    -moz-box-sizing: content-box;
    -webkit-box-sizing: content-box;
}

(or, which is more common for liquid form layouts where you want to use ‘100%’ width, you can set the others to border-box.)

The -browser prefixed versions have to be there to catch browsers that implemented this before the standardisation process got so far. This will be ineffective on IE6-7, though.


Solution 2:

A few things you can try:

  • Set the doctype of the document (<!DOCTYPE html>)
  • Set the input to be display:block or display: inline-block
  • Use a reset stylesheet.

Solution 3:

It makes sense because the height of the element is naturally more than what you set it to. input elements are assigned a height which, in this case, should be enough to contain the text of your element but you set it to a smaller amount. To show this, remove your height setting.


Solution 4:

I got it working removing the padding of the input button and setting a height around 20. then adjusting the height, padding of the anchor element. I Also set the line-height, font-size and the font-family.

worked on FF,IE,safari and chrome :D


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