.container{
 display: flex;
 flex-direction: column;
 width: 50%;   
margin: auto;
padding: 0.5rem;
}
body{
    background-color: #ecfccb;
    color: #365314;
}
#check-button{
    background-color: #485c30;
    border: none;
    margin-top: 1rem;
}