body{
  font-family: "楷体";
  background-color:rgb(244, 238, 238) ;
}
h1{
  color: #126ae5;
}
form{
  background-color: rgb(240, 242, 244);
  text-align: center;
  max-width: 350px;
  margin: auto;
  margin-top: 50px;
  padding: 30px;
  border-radius: 20px;
  box-shadow: 5px 5px 15px rgb(161, 109, 213) ;
}
#textbox{
  width: 50%;
  text-align: center;
  font-size: 2em;
  border: 2px solid rgb(60, 209, 10);
  border-radius: 15px;
  margin-bottom: 15px;
}
label{
  font-size: 1.5em;
  font-weight: bold;
}
button{
  margin-top: 20px;
  background-image: linear-gradient(to right, #6a11cb 0%, #2575fc 100%);
  color: rgb(250, 250, 250);
  font-size: 1.5em;
  border: none;
  padding: 10px 15px;
  border-radius: 15px;
  cursor: pointer;
}

button:hover{
  background-image: linear-gradient(to right, #b8cbb8 0%, #b8cbb8 0%, #b465da 0%, #cf6cc9 33%, #ee609c 66%, #ee609c 100%);
}
#result{
  font-size: 1.75em;
  font-weight: bold;
}