body {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    height: 100vh;
    background-color: rgb(255, 255, 255);
    background-image: linear-gradient( rgb(255, 255, 255),rgb(43, 43, 43));
    margin: 0;
}
.big-title {
    font-size: 6rem; 
    font-weight: bold;
    color: #000000;
    margin-bottom: 0px;
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
}
#myTextBox {
    width: 300px; 
    padding: 10px;
    font-size: 16px;
    margin-bottom: 100px;
}
.container {
    position:  relative;
    text-align: center; 
}
.contained {
    display: flex; 
    justify-content: center; 
    margin-top: 10px; 
}
button {
    padding: 10px 20px;
    font-size: 16px;
    color: white;
    background-color: #474747;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: #474747 0.3s;
}
.response {
    margin-top: 10px; 
    font-size: 18px; 
    color: #000000;  
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center; 
}