html, body, {
  height: 100%;
  width: 100%;
}
body {
  overflow-x: hidden !important ;
  /*flex-direction: column;*/
  margin: 0 auto;
  background-color: #fff;
}
.conteiner{
  width: 100%;
  height: 100%;
  padding: 0px;
  margin: 0 auto;
  max-width: 414px;
}
.content{
  padding-left: 10px;
  padding-right: 10px;
}
header{
  background-color:#fff;
  height: 100px;
  width: 100%;
  -webkit-box-shadow: 2px 3px 15px -4px rgba(0,0,0,0.38);
-moz-box-shadow: 2px 3px 15px -4px rgba(0,0,0,0.38);
box-shadow: 2px 3px 15px -4px rgba(0,0,0,0.38);
}

.logo{
  margin: 0 auto;
  position: relative;
  background-image: url("../img/logo.png");
  width: 300px;
  height: 60px;
  background-size: 100%;
  background-repeat: no-repeat;
  top: 20px;
}
h1{
  font-family: 'Roboto';
  color: #a9aca3;
  font-weight: 500;
  text-transform: uppercase;
  margin-bottom: 0px;
}
h3{
  font-family: 'Roboto';
  color: #a9aca3;
  font-weight: 300;
  text-transform: uppercase;
  margin-top: 5px;
}

.box-img{
  position: relative;
  margin: 0 auto;
  width: 100%;
  max-width: 414px;
  height: 200px;
  background-color: #a9aca3;
}
p{
  font-family: 'Roboto';
  color: #a9aca3;
  font-weight: 100;
  line-height: 20px;
}

.banner-ejemplo{
  position: sticky;
  display: flex;
  bottom: 0;
  background-image: url("../img/banner.gif");
  width: 320px;
  height: 50px;
  margin: 0 auto;
}