.big {
  font-size: 120%;
}

.bold1 {
  font-weight: bold;
}

.bold2 {
  font-weight: bolder;
}

.hidden {
  /*display: block;*/
  display: none;
}

.medium {
  font-size: 100%;
}

.menu {
  font-size: 100%;
  text-decoration: none;
  color: #f00;
}

.small {
  font-size: 80%;
}

a:active {
  color: #00f;
  text-decoration: none;
}

a:active.menu {
  color: #0f0;
  background-color: #f0f;
}

a:hover {
  color: #f0f;
  text-decoration: underline;
}

a:hover.menu {
  color: #00f;
  background-color: #ff0;
  text-decoration: none;
}

a:link {
  color: #f00;
  text-decoration: none;
}

a:link.menu {
  color: #f00;
}

a:visited {
  color: #0f0;
  text-decoration: none;
}

a:visited.menu {
  color: #f00;
}

body {
  font-family: arial,sans-serif;
  text-align: justify;
  font-size: 100%;
  color: #000;
  background-color: #fff;
  background-image: none;
  width: 100%;
  height: 97%;
}

div#container {
  /*nessuna regola necessaria
  position: relative;*/
  width: 100%;
  height: 97%;
}

div#content {
  text-align: justify;
  margin: 0;
  padding: 10px;
  border-width: 10px;
  height: 73%;
  width: 70%;
  bottom: 6%;
  left: 15%;
  overflow: auto;
  position: absolute;
  }

div#contentsmall {
  text-align: justify;
  margin: 0;
  padding: 10px;
  border-width: 10px;
  height: 70%;
  width: 85%;
  bottom: 6%;
  overflow: auto;
  position: absolute;
  }

div#extra {
  text-align: center;
  display: block;
  z-index: 2;
  top: 17%;
  left: 85%;
  width: 15%;
  position: absolute;
  padding: 10px;
}

div#extradown {
  text-align: center;
  display: block;
  z-index: 2;
  top: 20%;
  left: 85%;
  width: 15%;
  position: absolute;
  padding: 10px;
}

div#footer {
  display: block;
  width: 100%;
  position: absolute;
  z-index: 2;
  bottom: 0em;
  text-align: center;
  padding: 10px;
  background-color: #fff;
}

div#header {
  display: block;
  height: 12.5%;
  width: 100%;
  position: absolute;
  z-index: 2;
  top: 0em;
  text-align: center;
  padding: 10px;
  background-color: #fff;
}

div#headerbig {
  display: block;
  width: 100%;
  height: 12%;
  position: absolute;
  z-index: 2;
  top: 0em;
  text-align: center;
  padding: 10px;
  background-color: #fff;
}

div#index {
  display: block;
  position: absolute;
  z-index: 2;
  width: 15%;
  bottom: 6%;
  text-align: center;
  padding: 10px;
}

div#navigation {
  text-align: left;
  display: block;
  position: absolute;
  z-index: 2;
  top: 17%;
  width: 15%;
  padding: 10px;
}

html {
  width: 100%;
  height: 97%;
}