*{
    margin: 0;
    padding: 0;
}
body{
    text-align: center;
    background-image: linear-gradient(to right, #a4d1f4, #a5dcf6, #abe7f6, #b6f0f4, #c5f9f3);   
}
 h1{
    font-family: Arial, Helvetica, sans-serif;
    font-size: 20px;
    }
 .container{
    width: 400px;
    height: 200px;
    border-radius: 10px;
    background-color: rgb(133, 133, 236);
    display: block;
    margin-left: auto;
    margin-right: auto;
 }
 #mensagem{
   width: 200px;
   height: 40px;
   border-radius: 200px;
   display: block;
   margin-left: auto;
   margin-right: auto;
   text-align: center;
   background-color: rgb(203, 218, 225);   
 }
 .formulario{
   display: flex;
   flex-direction: column;
   justify-content: space-around;
 }
 #number{
   width: 30px;
   height: 25px;
   border-radius: 5px;
   text-align: center;
 }