ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
    overflow: hidden;
    background-color: #333;
}

li {
    float: left;
}

    li a, .dropbtn {
        display: inline-block;
        color: white;
        text-align: center;
        padding: 14px 16px;
        text-decoration: none;
    }

        li a:hover, .dropdown:hover .dropbtn {
            background-color: red;
        }

    li.dropdown {
        display: inline-block;
    }

.dropdown-content {
    display: none;
    position: absolute;
    background-color: #f9f9f9;
    min-width: 160px;
    box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
    z-index: 1;
}

    .dropdown-content a {
        color: black;
        padding: 12px 16px;
        text-decoration: none;
        display: block;
        text-align: left;
    }

        .dropdown-content a:hover {
            background-color: #f1f1f1;
        }

.dropdown:hover .dropdown-content {
    display: block;
}

table, th, td {
    border: 1px solid black;
}

table {
    border-collapse: collapse;
}

.footer {
    position: fixed;
    bottom: 0;
    right: 10px;
    width: 100%;
}

    .footer p {
        font-size: 12px;
        font-size: 12px;
    }

.flex-container {
    display: flex;
}

.flex-child {
    flex: 1;
    border: 2px solid yellow;
}

    .flex-child:first-child {
        margin-right: 20px;
    }

.tooltip {
    position: relative;
    display: inline-block;
    border-bottom: 1px dotted black;
}

    .tooltip .tooltiptext {
        visibility: hidden;
        width: 120px;
        background-color: black;
        color: #fff;
        text-align: center;
        border-radius: 6px;
        padding: 5px 0;
        position: absolute;
        z-index: 1;
        top: -5px;
        left: 105%;
        /* Fade in tooltip - takes 1 second to go from 0% to 100% opac: */
        opacity: 0;
        transition: opacity 1s;
    }

    .tooltip:hover .tooltiptext {
        visibility: visible;
        opacity: 1;
    }