body {
    background-color: #f8f9fa;
}

.container {
    max-width: 600px;
    margin-top: 50px;
    padding: 20px;
    background-color: #ffffff;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}
span{
    display: inline;
    color: red;
}
h2 {
    margin-bottom: 20px;
    background-color: lightcoral;
    padding: 10px;
    border-radius: 10px;
}
#focus{
    display: none;
}
#focus{
    display: block;
}

#dataCard {
    margin-top: 20px;
}
.btn-primary{
    margin-top: 15px;
}