/*! normalize.css v2.1.1 | MIT License | git.io/normalize */
/* ==========================================================================
   HTML5 display definitions
   ========================================================================== */
/*** Correct `block` display not defined in IE 8/9. */

article,
aside,
details,
figcaption,
figure,
footer,
header,
hgroup,
main,
nav,
section,
summary {
    display: block;
}

/** * Correct `inline-block` display not defined in IE 8/9. */

audio,
canvas,
video {
    display: inline-block;
}

/** * Prevent modern browsers from displaying `audio` without controls. Remove excess height in iOS 5 devices. */

audio:not([controls]) {
    display: none;
    height: 0;
}

/** * Address styling not present in IE 8/9. */

[hidden] {
    display: none;
}

/* ==========================================================================
   Base
   ========================================================================== */

/**
 * 1. Prevent system color scheme's background color being used in Firefox, IE, *    and Opera.
 * 2. Prevent system color scheme's text color being used in Firefox, IE, and *    Opera.
 * 3. Set default font family to sans-serif.
 * 4. Prevent iOS text size adjust after orientation change, without disabling*    user zoom. */

html {
    background: #000; /* 1 */
    color: #000; /* 2 */
    font-family: sans-serif; /* 3 */
    -ms-text-size-adjust: 100%; /* 4 */
    -webkit-text-size-adjust: 100%; /* 4 */
}

/**
 * Remove default margin.
 */

body {
   
     background: #000; /* 1 */
 margin: 0 auto; width: 1420px; text-align: center  ;height:500px; }
/* border-radius: 0px 0px 30px 30px;
border: 1px solid #bbb;

*/
/* ==========================================================================
   Links
   ========================================================================== */
/**
 * Address `outline` inconsistency between Chrome and other browsers.
 */

a:focus {
    outline: thin dotted;
}

/**
 * Improve readability when focused and also mouse hovered in all browsers.
 */

a:active,
a:hover {
    outline: 0;
}

/* ==========================================================================
   Typography
   ========================================================================== */

/** * Address variable `h1` font-size and margin within `section` and `article`
 * contexts in Firefox 4+, Safari 5, and Chrome.*/

h1 {
    font-size:5.0em;
    margin: 0.67em 0;
}
h2 {
    font-size: 3.0em;
    margin: 0.67em 0;
}

h3 {
    font-size: 2.0em;
    margin: 0.67em 0;
}
h4 {
    font-size: 1.0em;
    margin: 0.67em 0;
}

h5 {
    font-size: ,75em;
    margin: 0.67em 0;
}
h6 {
    font-size: ,5em;
    margin: 0.67em 0;
}
/** * Address styling not present in IE 8/9, Safari 5, and Chrome. */

abbr[title] {
    border-bottom: 1px dotted;
}

/** * Address style set to `bolder` in Firefox 4+, Safari 5, and Chrome. */

b,
strong {
    font-weight: bold;
}

/** * Address styling not present in Safari 5 and Chrome. */

dfn {
    font-style: italic;
}

/** * Address differences between Firefox and other browsers. */

hr {
    -moz-box-sizing: content-box;
    box-sizing: content-box;
    height: 0;
}

/** * Address styling not present in IE 8/9. */

mark {
    background: #ff0;
    color: #000;
}

/** * Correct font family set oddly in Safari 5 and Chrome. */

code,
kbd,
pre,
samp {
    font-family: monospace, serif;
    font-size: 1em;
}

/**
 * Improve readability of pre-formatted text in all browsers.
 */

pre {
    white-space: pre-wrap;
}

/**
 * Set consistent quote types.
 */

q {
    quotes: "\201C" "\201D" "\2018" "\2019";
}

/**
 * Address inconsistent and variable font size in all browsers.
 */

small {
    font-size: 80%;
}

/**
 * Prevent `sub` and `sup` affecting `line-height` in all browsers.
 */

sub,
sup {
    font-size: 75%;
    line-height: 0;
    position: relative;
    vertical-align: baseline;
}

sup {
    top: -0.5em;
}

sub {
    bottom: -0.25em;
}

/* ==========================================================================
   Embedded content
   ========================================================================== */

/**
 * Remove border when inside `a` element in IE 8/9.
 */

img {
    border: 0;
}

/**
 * Correct overflow displayed oddly in IE 9.
 */

svg:not(:root) {
    overflow: hidden;
}

/* ==========================================================================
   Figures */

/**
 * Address margin not present in IE 8/9 and Safari 5.
 */

figure {
    margin: 0;
}

/* ==========================================================================
   Forms
   ========================================================================== */

/**
 * Define consistent border, margin, and padding.
 */

fieldset {
    border: 1px solid #c0c0c0;
    margin: 0 2px;
    padding: 0.35em 0.625em 0.75em;
}

/**
 * 1. Correct `color` not being inherited in IE 8/9.
 * 2. Remove padding so people aren't caught out if they zero out fieldsets.
 */

legend {
    border: 0; /* 1 */
    padding: 0; /* 2 */
}

/**
 * 1. Correct font family not being inherited in all browsers.
 * 2. Correct font size not being inherited in all browsers.
 * 3. Address margins set differently in Firefox 4+, Safari 5, and Chrome.
 */

button,
input,
select,
textarea {
    font-family: inherit; /* 1 */
    font-size: 100%; /* 2 */
    margin: 0; /* 3 */
}

/**
 * Address Firefox 4+ setting `line-height` on `input` using `!important` in
 * the UA stylesheet.
 */

button,
input {
    line-height: normal;
}

/**
 * Address inconsistent `text-transform` inheritance for `button` and `select`.
 * All other form control elements do not inherit `text-transform` values.
 * Correct `button` style inheritance in Chrome, Safari 5+, and IE 8+.
 * Correct `select` style inheritance in Firefox 4+ and Opera.
 */

button,
select {
    text-transform: none;
}

/**
 * 1. Avoid the WebKit bug in Android 4.0.* where (2) destroys native `audio`
 *    and `video` controls.
 * 2. Correct inability to style clickable `input` types in iOS.
 * 3. Improve usability and consistency of cursor style between image-type
 *    `input` and others.
 */

button,
html input[type="button"], /* 1 */
input[type="reset"],
input[type="submit"] {
    -webkit-appearance: button; /* 2 */
    cursor: pointer; /* 3 */
}

/**
 * Re-set default cursor for disabled elements.
 */

button[disabled],
html input[disabled] {
    cursor: default;
}

/**
 * 1. Address box sizing set to `content-box` in IE 8/9.
 * 2. Remove excess padding in IE 8/9.
 */

input[type="checkbox"],
input[type="radio"] {
    box-sizing: border-box; /* 1 */
    padding: 0; /* 2 */
}

/**
 * 1. Address `appearance` set to `searchfield` in Safari 5 and Chrome.
 * 2. Address `box-sizing` set to `border-box` in Safari 5 and Chrome
 *    (include `-moz` to future-proof).
 */

input[type="search"] {
    -webkit-appearance: textfield; /* 1 */
    -moz-box-sizing: content-box;
    -webkit-box-sizing: content-box; /* 2 */
    box-sizing: content-box;
}

/*** Remove inner padding and search cancel button in Safari 5 and Chrome * on OS X.*/

input[type="search"]::-webkit-search-cancel-button,
input[type="search"]::-webkit-search-decoration {
    -webkit-appearance: none;
}

/** * Remove inner padding and border in Firefox 4+. */

button::-moz-focus-inner,
input::-moz-focus-inner {
    border: 0;
    padding: 0;
}

/** * 1. Remove default vertical scrollbar in IE 8/9.
 * 2. Improve readability and alignment in all browsers.*/

textarea {
    overflow: auto; /* 1 */
    vertical-align: top; /* 2 */
}

/* ==========================================================================
   Tables
   ========================================================================== */
/** * Remove most spacing between table cells. */

table {
    border-collapse: collapse;
    border-spacing: 50;
}
/*footer {
    font-size: 2  em;     height: 2em;     <a href="menu-menu.css"></a> ;
}
*/

/*  
Sticky Footer Solution
by Steve Hatcher 
http://stever.ca
http://www.cssstickyfooter.com
*/

* {margin:0;padding:0;} 

/* must declare 0 margins on everything, also for main layout components use padding, not 
vertical margins (top and bottom) to add spacing, else those margins get added to total height 
and your footer gets pushed down a bit more, creating vertical scroll bars in the browser */

html, body {height: 100%;}

#wrap {min-height: 100%;}

#main {overflow:auto;
	padding-bottom: 100px;}  /* must be same height as the footer */

#footer {position: relative;
	margin-top:-126px; /* negative value of footer height */
	height: 100px;
	clear:both;
    border-radius:  25px  25px 25px 25px;
    background-color: #ffffff;} 

/*Opera FixF0F0F0*/
body:before {/* thanks to Maleika (Kohoutec)*/
content:"";
height:100%;
float:left;
width:0;
margin-top:-32767px;/* thank you Erik J - negate effect of float*/
}


 header { text-align: center; border: 1px solid #bcb; border-radius: 00px 00px 25px 25px; border-color: BLACK; background-color: #D3E4D6;}
   /* body { margin: 0 auto; width: 1024px; text-align: center ; border: 2px solid #bbb; height:740px; background-color: black; border-radius: 0px 0px 30px 30px;} 
  
    section { display: block; };
	section#articles { width: 440px; float: left; padding: 0px; background-color: BLACK; overflow: hidden;} 
	div {background-color: BLACK; border-radius: 00px 00px 0px 0px;}
	article > header { text-decoration: underline; margin-bottom: 10px; }
	aside { position: relative; float:right; width:100px;  top: 0px; padding: 10px; bottom: 0px;background-color: #C0C0C0;   }
	*/  
		    nav li { float: left; width: 100px;  padding: 1px; color: #a0f; }
         	nav ul { list-style: none; overflow: hidden; padding: 0; margin: 0; text-align:center;  }
            a { color: #458c1f; }
    		nav li a { color: #fff; }  
	footer {border-radius:  25px  25px 25px 25px; overflow: hidden; clear:both; text-align: center; padding: 00px; background-color: #D3E4D6; }
	pippo {
    display: none;
    border:5px solid #A8D7A6;
	background-color: #D3E4D6;
	opacity:.85;
    height:100px;
    width:1390px;
    margin-left:10px;
	border-radius: 25px 25px 25px 25px;
	position:absolute;
	top: -120px
}

a:hover + pippo {
    display: block;
}

/* IMPORTANT*/

You also need to include this conditional style in the <head> of your HTML file to feed this style to IE 6 and lower and 8 and higher.

<!--[if !IE 7]>
	<style type="text/css">
		#wrap {display:table;height:100%}
	</style>
<![endif]-->