body {
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: #f4f4f4;
    margin: 0;
}

.container {
    text-align: center;
    width: 300px;
}

.textbox {
    width: 100%;
    padding: 10px;
    font-size: 16px;
    border: 1px solid #ccc;
    border-radius: 5px;
    box-shadow: 2px 2px 5px rgba(0, 0, 0, 0.1);
    outline: none;
    transition: border-color 0.3s;
}

.textbox:focus {
    border-color: #66afe9;
}

.message {
    display: flex;
    align-items: center;
    margin-top: 10px;
    font-size: 14px;
}

.success {
    color: green;
}

.error {
    color: red;
}

.icon {
    margin-right: 8px;
    font-size: 18px;
}