.bttn {
  display: block;
  padding: 5px;
  font-family: 'Roboto', Helvetica, Arial, sans-serif !important;
  text-transform: uppercase;
  text-decoration: none;
  letter-spacing: 1px;
  margin-bottom: 10px;
  margin-top: 10px;
  text-align: center;
  cursor: pointer;
  -webkit-box-shadow: none !important;
  box-shadow: none !important;
  border-radius: 2px !important;
}
@media (min-width:640px){
    .bttn {
      display: inline-block;
      padding: 10px 20px;
    }
}

.bttn.hollow {
  background: none;
  border: 3px solid #00b4f1;
  color: #00b4f1;
}

.bttn.hollow.navy {
  border: 3px solid #0C354E;
  color: #0C354E;
}

.bttn.hollow.white {
  border: 3px solid white;
  color: white;
}

.bttn.filled {
  background: #1caee5;
  border: 3px solid #1caee5;
  color: white;
}

.bttn.filled.navy {
  background: #0C354E;
  border: 3px solid #0C354E;
  color: white;
}

.bttn.filled.white {
  background: white;
  border: 3px solid white;
  color: #1caee5;
}

.bttn:hover {
  transition: background 0.25s ease;
  background: #0C354E;
  border: 3px solid #0C354E;
  color: white;
}

.bttn.filled.navy:hover {
  transition: background 0.25s ease;
  background: #1caee5;
  border: 3px solid #1caee5;
  color: white;
}

.bttn.filled.white:hover {
  transition: background 0.25s ease;
  background: #0C354E;
  border: 3px solid #0C354E;
  color: white;
}

.bttn.disabled {
  background: #666;
  opacity: 0.6;
  border: 3px solid #666;
  cursor: not-allowed;
}

.bttn.compact {
  padding: 5px;
  font-size: 12px;
}

.bttn.semi-compact {
  padding: 10px;
  font-size: 12px;
}