body {
    margin: 0px;
    height: 100vh;
    font-family: Arial, Helvetica, sans-serif;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(to right, red, blue);
    color: white;
}

.age-cover {
    border: none;
    padding: 20px 100px;
    border-radius: 10px;
    box-shadow: 0px 0px 20px black;
    background-color: rgba(17, 167, 92, 0.144);
}

header {
    font-weight: bold;
    text-align: center;
    font-size: 30px;
}

.date-input {
    width: 250px;
    padding: 5px 0px 5px 5px;
    box-shadow: 0px 0px 5px black;
    border: none;
    outline: none;
    background-color: rgba(12, 109, 219, 0.349);
    color: white;
}

.placeholder-paragraph {
    margin-top: 16px;
    margin-bottom: 8px;
    text-align: center;
    font-weight: bold;
    font-size: 14px;
}

.age-button {
    margin-top: 10px;
    display: flex;
    justify-self: center;
    background-color: rgb(0, 153, 255);
    color: white;
    padding: 5px 10px;
    border: none;
    border-radius: 4px;
}

.age-output {
    width: auto;
    height: 20px;
    text-align: center;
    font-weight: bold;
}