body {
    margin: 0;
    padding: 0;

    font-size: 20px;

    display: flex;
    flex-wrap: wrap;

    justify-content: center;
    align-content: center;
    align-items: center;

    h1 {
        font-size: 2rem;
        margin-bottom: 10px;
    }

    small {
        width: 100%;
        text-align: center;
        font-size: 0.6rem;
    }

    .buttons {
        margin: 10px;

        width: 100%;

        display: flex;
        justify-content: space-evenly;

        input {
            width: 20%;

            background-color: #fff;
            outline: none;
            border: 2px solid #000;

            font-weight: 600;
        }

        input:hover {
            background-color: #e0e0e0;
        }
    }

    table {
        margin-top: 10px;
        border-collapse: collapse;

        td,
        th {
            border: 1px solid #000;
            text-align: center;
            padding: 5px;
        }

        #idId,
        #idNum {
            width: 70px;
        }

        td {
            font-size: 0.8rem;
        }

        th {
            width: 250px;
        }
        tr:nth-child(even) {
            background-color: aquamarine;
        }

        tr:nth-child(odd) {
            background-color: lightsteelblue;
        }

        #trH {
            background-color: plum;
            font-size: 1.4rem;
        }
    }
    .hidden {
        display: none;
    }
}