In the official Normalize.css (available at https://github.com/necolas/normalize.css/), there is no such padding, however most browsers will add this padding anyway to simply give the list some indentation from regular text.
If you want to remove this, simply modify the provided CSS or override it within your own CSS:
menu,
ol,
ul {
padding: 0;
}
dd {
margin: 0;
}
It's up to you to style your own documents however you like; aside from the default styles defined in the HTML specification, most browser default styles are simply there to make simple unstyled documents a bit prettier.