#contenido{ 
  width: 1340px;
  height: 435px;
  margin: 0 auto 0 auto;
  text-align: left; 
}

#seccionslider{ 
  width: 868px; 
  float: left; 
  margin-bottom: 70px;
}

#seccionface{ 
  width: 470px; 
  height: 435px;
  float: right;   
}

#scrolltothis{
  clear: both;
}