body {
  /*background-color: #F2F2F2;*/
}

h1 {
  color: #06266A;
}

#title {
  background-color: #F9F9F9;
  border: 1px solid #D0D0D0;
  text-align: center;
}

.container {
  margin-left: auto;
  margin-right: auto;
  width: 400px;
}

.ans {
  background-color: #B9FFB3;
  border: 1px solid #15FF00;
  text-align: center
}

.err {
  background-color: #FF6060;
  border: 1px solid #FF3000;
  text-align: center
}

div {
  margin-top: 20px;
}

a {
  color: black;
  text-decoration: none;
}

p {
  text-align: center;
}
p.info {
  font-size: small;
}

input {
  font-size: 30px;
  text-align: center;
  width: 100%;
}