body{
    font-family:'Trebuchet MS', 'Lucida Sans Unicode', 'Lucida Grande', 'Lucida Sans', Arial, sans-serif ;
    background-color: #3c4252;
}
h1{
    color:#3deaa4;
}
form{
    background-color: #111318;
    text-align: center;
    max-width: 350px;
    margin:auto;
    padding:25px;
    border-radius: 10px;
    box-shadow: 5px 5px 15px black;

}
body{    
    line-height: 1.6;
    color: #3deaa4;
    
}  
#textbox{
    width: 50%;
    text-align: center;
    font-size: 2em;
    border: 2px solid black;
    border-radius:  4px;
    margin-bottom: 15px;

}
label{
    font-size: 1.5em;
    font-weight: bold;

}
button{
    margin-top: 15px;
    background-color: #3fc182;
    font-size: 1.5em;
    border: none;
    padding: 10px 15px;
    border-radius: 5px;
    cursor: pointer;
}
button:hover{
    background-color: #3fc345

}

#result{

    font-size: 1.75em;
    font-family: bold;
}