how to delete margin-top: 32px !important from twenty twelve

Question

I want to remove the margin-top property from twenty twelve theme. This is the default theme provided by wordpress. The sample of the code what I found with the help of firebug.

Answer 1

in the style.css around line #1645 is body .site { which has padding top & bottom:

body .site {
    padding: 0 40px;
    padding: 0 2.857142857rem;
    margin-top: 48px;
    margin-top: 3.428571429rem;
    margin-bottom: 48px;
    margin-bottom: 3.428571429rem;
    box-shadow: 0 2px 6px rgba(100, 100, 100, 0.3);
}