body{
    background-color: #444;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

form {
    margin-top: 150px;
    width: 500px;
    max-width: 450px;
    border: 1px solid #eee;
    padding: 15px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-self: center; 
}

form input{
    margin-bottom: 15px;
    padding: 15px;
}

form input[type="submit"] {
    cursor: pointer;
    transition: all .3s ease-in-out;
    padding: 15px;
    border: none;
    color: #fff;
    background-color: rgb(236, 110, 110);
    font-size: 14px;
    font-family: Impact, Haettenschweiler, 'Arial Narrow Bold', sans-serif;
}

.container {
    display: flex;
    justify-content: center;
}

.value {
    align-self: center;
    color: #fff;
    font-size: 40px;
    font-family: Impact, Haettenschweiler, 'Arial Narrow Bold', sans-serif;
}