@keyframes gradient {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

html,
body {
    margin: 0;
    padding: 0;
    overflow: hidden;
    width: 100%;
    height: 100%;
}

body {
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
}

form {
    background-color: #fff;
    padding: 20px;
    border-radius: 5px;
    box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.1);
    width: 44em;
}

input[type="text"],
input[type="date"],
input[type="submit"] {
    width: 100%;
    padding: 10px;
    margin-bottom: 10px;
    border-radius: 5px;
}
input[type="text"],
input[type="date"] {
    border: 1px solid #ddd;
}
input[type="submit"] {
    border: none;
    color: #fff;
    background-color: #007bff;
}

.input-container {
    display: flex;
    justify-content: center;
}

#inputFormDiv {
    display: flex;
    justify-content: center;
    align-items: center;
    position: absolute;
    left: 0;
    height: 100%;
    width: 100%;
    flex-direction: column;
    background: linear-gradient(-45deg, #ee7752, #e73c7e, #23a6d5, #23d5ab);
    background-size: 400% 400%;
    animation: gradient 15s ease infinite;
}