body{
    display: flex;
    flex-direction: column;
    flex-wrap: wrap;
   align-items: center;
   background-color: blue; 
   width: 400px;
margin: auto;
color: aliceblue;
}

h1{
    border: 2px solid black;
    border-radius: 1rem;
    padding: 1.4rem;
    margin: 1rem;
   
    
}
input{
    border: 1px solid black;
    border-radius: 1rem;
    padding: 0.8rem;
    margin: 1rem;

}
#btn-check{
    border: 1px solid black;
    background-color: aliceblue;
    border-radius: 0.5rem;
    padding: 0.5rem;
    margin:1rem;
    cursor: pointer;
}

#output{
    border: 1px solid black;
    background-color: beige;
    border-radius: 0.5rem;
    padding: 0.5rem;
    margin:1rem;
    color: black;
    
}
footer{
    border: 1px solid black;
    border-radius: 0.5rem;
    text-align: center;
    padding: 1rem 2rem;
    margin: 2rem 1rem;
    font-size: 18px;
   color: black;
}

.list-non-bullet{
    list-style: none;
    text-align: center;
    display: inline;
}