.centered {
  text-align: center;
}

.align_left {
  text-align: left;
}

.limited_width {
  margin-left: auto;
  margin-right: auto;
  width: 80%;
}

.big_text {
  font-size: 150%;
}

.big_button {
  font-size: 200%;
}

.bigger_button {
  font-size: 300%;
}

.biggest_button {
  font-size: 400%;
}

.picture{
  display: block;
  margin-left: auto;
  margin-right: auto;
  width: 50%;
}

.person_foto{
  display: block;
  margin-left: auto;
  margin-right: auto;
  width: 40%;
}

.person_foto_container{
	width: 50%;
}

@media only screen and (max-width: 600px) {
.limited_width {
  width: 100%;
}

.bigger_button {
  font-size: 300%;
}

.picture{
  width: 90%;
}

.person_foto{
	width: 80%
}

.person_foto_container{
	width: 100%;
}
}