reset.css

/*
----------------------------------------
Tantek Celik's Whitespace Reset
     Author:    Tantek Celik, Shane Riley
    Version:    (CC) 2010 Some Rights Reserved - http://creativecommons.org/licenses/by/2.0
Description:  Resets default styling of browsers to a common base
----------------------------------------
*/

ul, ol { list-style: none; }
h1, h2, h3, h4, h5, h6, pre, code { font-size: 1em; }
ul, ol, li, h1, h2, h3, h4, h5, h6, pre, form, body, html, p, blockquote,
fieldset, input, dl, dt, dd, figure, figcaption {
    margin: 0;
    padding: 0;
}
a img, :link img, :visited img, fieldset { border: none; }
address { font-style: normal; }
header, section, article, nav, footer, hgroup, details, summary, figure, main {
    display: block;
}
mark {
    color: inherit;
    background-color: transparent;
}
abbr { border: none; }
summary::-webkit-details-marker { display: none; }