img {max-width:100%}
.floatleft {float:left;margin-right:15px}
.floatright {float:right;margin-left:15px}
.floatcenter {float:none;margin:0 auto}
body {font-family: 'Roboto', sans-serif;}

.structure{width:820px;margin:0 auto}
.header_area{background: url("img/header_bg.png") repeat-x scroll 0 0 rgba(0, 0, 0, 0);
padding: 20px 0 ;
display: block;
overflow: hidden;}
.header{background: url("img/world_01.png") no-repeat scroll 0 0 rgba(0, 0, 0, 0);
display: block;
overflow: hidden;}
.laptop{background: url("img/middle_border_one.jpg") no-repeat scroll 0 223px rgba(0, 0, 0, 0);
border-radius:5px;
height: 100%;
width: 820px;}
.laptop_two{margin-left: 0;
margin-right:-40px;
margin-top: -235px;}
.laptop_two > img {
  width: 75%;
}
.logo{margin-right: 50px;
margin-top: -290px;}
.maincontent_area{background: none repeat scroll 0 0 #96c7ee;
border-top: 1px solid #d7e9f5;
margin-top: -90px;}
.maincontent{background: #fff;
border-radius: 10px;
display: block;
overflow: hidden;
padding:90px 20px;
}

.footer_area{background: none repeat scroll 0 0 #96c7ee;padding-bottom:0px;}
.footer_logo > img {margin-left: 243px;
margin-top: 20px;
width: 34%;
}
.footer{}
.footer_logo{background:url(img/footer_earth_11.png) no-repeat}

.guarantee {
  background-color: #4CAF50;
  color: white;
  padding: 20px;
  border-radius: 10px;
  margin: 20px 0;
}

.centered-image {
  display: block;
  margin: 0 auto;
  text-align: center;
}

.centrado {
  text-align: center;
}

.{}
.{}
.{}
.{}