body {
  font-family: Arial, sans-serif;
  text-align: center;
  font-size: 16px;
}

#sai {
  font-size: 200px;
}

#promptNo {
  font-size: 3rem;
}
#button {
  margin: 0 auto;
  margin-bottom: 2em;
}

input {
  font-size: 24px;
  padding: 0.2em;
  text-decoration: none;
  border-radius: 4px;
  color: #ffffff;
  background-image: linear-gradient(#6795fd 0%, #67ceff 100%);
  box-shadow: 0 0.1em 0.1em rgba(0, 0, 0, 0.29);
  border-bottom: solid 0.05em #5e7fca;
  border-radius: 0.2em;
}
input:active{
  transform: translateY(3px);
  box-shadow: 0px 0px 1px rgba(0, 0, 0, 0.2);
  border-bottom: none;
  border-radius: 0.2em;
}