.container{
    width: 100vw;
    height: 100vh;
    background-color: bisque;
    display: flex;
    align-items: center;
    justify-content: center;
    font: 'verdana', Courier,
    monospace;
}

.container form{
    width: 350px;
    height: 250px;
    border: 3px solid gold;
    border-radius: 20px;
    padding: 20px;
}

.container h1{
    text-align: center;
}

.input_group{
    margin:20px 0;
    display: flex;
    align-items: center;
    width: 100%;
}

.container input{
    font-family: Verdana, Geneva, Tahoma, sans-serif;
    font-size: 20px;
    padding: 3px;
    flex: 1;
    flex-shrink: 2;
    width: 50px;
}