IPython/frontend/html/notebook/static/css/base.css

/**
 * Primary styles
 *
 * Author: IPython Development Team
 */


body {
    background-color: white;
    /* This makes sure that the body covers the entire window and needs to
       be in a different element than the display: box in wrapper below */
    position: absolute;
    left: 0px;
    right: 0px;
    top: 0px;
    bottom: 0px;
    overflow: hidden;
}


div#header {
    /* Initially hidden to prevent FLOUC */
    display: none;
    position: relative;
    height: 45px;
    padding: 5px;
    margin: 0px;
    width: 100%;
}

span#ipython_notebook {
    position: absolute;
    padding: 2px;
}

span#ipython_notebook h1 {
    font-family: Verdana, "Helvetica Neue", Arial, Helvetica, Geneva, sans-serif;
    font-size: 197%;
    display: inline;
    color: black;
}

div#main_app {
    /* Initially hidden to prevent FLOUC */
    display: none;
    width: 100%;
    position: relative;
}

.ui-button .ui-button-text {
    padding: 0.2em 0.8em;
    font-size: 77%;
}