body {
  background-color: #42a5f5;
}

.row {
  margin: 0 auto;
  width: 280px;
  clear: both;
  text-align: center;
  font-family: 'Exo';
}

.digit{
  float: left;
  padding: 10px 30px;
  width: 30px;
  font-size: 3rem;
  cursor: pointer;
}

.sub {
  font-size: 0.8rem;
  color: grey;
}

.container1 {
  background-color: white;
  width: 300px;
  padding: 20px;
  margin: 30px auto;
  height: 420px;
  text-align: center;
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.25), 0 10px 10px rgba(0, 0, 0, 0.22);
}

.containerbig {
  background-color: #F9F7BA;
  width: 700px;
  padding: 20px;
  margin: 30px auto;
  height: 420px;
  text-align: center;
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.25), 0 10px 10px rgba(0, 0, 0, 0.22);
}

.containerfaq {
  background-color: #F9F7BA;
  width: 700px;
  padding: 20px;
  margin: 30px auto;
  height: 820px;
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.25), 0 10px 10px rgba(0, 0, 0, 0.22);
}

#output {
  font-family: "Exo";
  font-size: 2rem;
  height: 60px;
  font-weight: bold;
  color: #1976d2;
}

#call {
  display: inline-block;
  background-color: #66bb6a;
  padding: 4px 30px;
  margin: 10px;
  color: white;
  border-radius: 4px;
  float: left;
  cursor: pointer;
}

.botrow {
  margin: 0 auto;
  width: 280px;
  clear: both;
  text-align: center;
  font-family: 'Exo';
}

.digit:active,
.dig:active {
  background-color: #e6e6e6;
}

#call:hover {
  background-color: #81c784;
}

.loader {
  border-top: 16px solid blue;
    border-right: 16px solid green;
    border-bottom: 16px solid red;
    border-left: 16px solid pink;
  border-radius: 50%;
  width: 120px;
  height: 120px;
  animation: spin 2s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}