* {box-sizing: border-box;}

body { 
  	margin: 0;
    font-family: 'Roboto', sans-serif;
    text-align: center;
	margin-bottom:0;
	margin-left:0;
	margin-right:0;
	margin-top:0;
}

.header {
  overflow: hidden;
  padding: 20px 10px;
}

.header a {
  float: left;
  color: black;
  text-align: center;
  padding: 12px;
  text-decoration: none;
  font-size: 18px; 
  line-height: 25px;
  border-radius: 4px;
}

.header img {
	width:20%;
	padding: 20px 40px;
	float: left;
}

.header a:hover {
  background-color: #ddd;
  color: black;
}

.header a.active {
  background-color: dodgerblue;
  color: white;
}

.header-right {
  float: right;
}

@media screen and (max-width: 500px) {
  .header a {
    float: none;
    display: block;
    text-align: left;
  }
  .header-right {
    float: none;
  }
}

#back
{
	position: relative;
	height: 350px;
	background:rgba(0,64,128,0.3);
}

#font p
{
	font-size:medium;
	color:#FFF;
}

.button {
  display: inline-block;
  border-radius: 4px;
  background-color: #f4511e;
  border: none;
  color: #FFFFFF;
  text-align: center;
  font-size: large;
  padding: 20px;
  width: 200px;
  transition: all 0.5s;
  cursor: pointer;
  margin: 5px;
}

.button span {
  cursor: pointer;
  display: inline-block;
  position: relative;
  transition: 0.5s;
}

.button span:after {
  content: '\00bb';
  position: absolute;
  opacity: 0;
  top: 0;
  right: -20px;
  transition: 0.5s;
}

.button:hover span {
  padding-right: 25px;
}

.button:hover span:after {
  opacity: 1;
  right: 0;
}

#escrito p
{
	font-size:medium;
	color:#FFF;
}

#blanco li
{
 text-align: right;	
}