html, body, div, span, p, a, img, ul, li{margin: 0;padding: 0;}
html, body{height: 100%}
body{
    text-align:center;
    font-family: Tahoma, Geneva, sans-serif;
}
a{
    text-decoration: none;
    color: #333;
}
ul li,li{list-style:none;}