body {
background: #ffffff;
background-attachment: fixed;
color:#141414;
}


.usuario {
  padding: 0px 10px;
}

.uno {
    position: absolute;
    top:14;
    padding: 0px 10px;
}

.header2 {
  position: absolute;
  top:0;
  bottom:0 ;
  right:0;
  width:100%;
  height:200px;
  background-color:#646464;
}

#centro1 {
    width: 340px;
    height: 290px;
    padding: 10px;
    float: left;
}

.center-block {
    width: 260px;
  display: block;
  margin-left: auto;
  margin-right: auto;
  
}

.center-block2 {
    width: 600px;
  display: block;
  margin-left: auto;
  margin-right: auto;
  
}

.btn1 {
  font-size: 200%;
  color:white;  
background-size: 100% 100%;
padding: 40px 100px;
transition: .5s;
}

.btn1:hover {
  font-size: 200%;
  color: white;
background-size: 100% 100%;
padding: 40px 100px;
}

.btn2 {
  font-size: 200%;
background-size: 100% 100%;
padding: 40px 70px;
transition: .5s;
}
