body, h1
 {
 font-family: 'Raleway', sans-serif;
 }

.main_number 
{
 font-family: 'Raleway', sans-serif;
 
 font-size: 8em;
 color: #1b6747;
}

@media only screen and (max-width: 500px) {
.main_number 
{
 font-family: 'Raleway', sans-serif;
 
 font-size: 4em;
 color: #1b6747;
}
}

.button-green
 {
  background-color:#1b6747;
  color:#fff;
 }