Questions about browser default CSS_html/css_WEB-ITnose

I saw the browser default CSS at http://www.w3cfuns.com/topic-12.html
and it feels a little different. For example, the INPUT tag
The default CSS under IE9 is
background-color: #FFF;
border-width: 2px;
font-family: sans-serif;
font-size: 10pt;
overflow: hidden;
padding: 1px;
zoom : 1;

If I re-define the input tag with the same css
, the displayed input is a little different from the default input tag that is not defined. I don’t know if you have noticed

Reply to discussion (solution)

Are there some default ones that are not listed? width height

Are there some default ones that are not listed? width height

It is possible. . .

Rewritten text box

Are there some default ones that are not listed? width height

After thinking about it carefully, it should be wrong - -
Because it covers part of the CSS, the displayed style should be the same

I’m done, I generally understand