html,
        body,
        #heading {
            padding: 0;
            margin: 0;
            height: 100%;
            width: 100%;
        }

        #info {
            padding: 1em;
            max-width: 300px;
        }

        #topheader {
            text-align: left;
            margin: auto;
            display: flex;
            height: 44px;
            width: 100%;
            font: 36px bold;
            color: white;
            text-align: left;
            align-items: center;
            background-color: rgb(43, 113, 111);
        }

        #viewDiv {
            padding: 0;
            margin: 0;
            height: calc(100% - 44px);
            width: 100%;
            overflow: hidden;
            background-color: #555555;
            position: relative;
        }

        .slider-container {
            position: absolute;
            bottom: 20px;
            left: 50%;
            transform: translateX(-50%);
            background: linear-gradient(145deg, #ffffff, #505aee);
            padding: 15px;
            border: 1px solid #ddd;
            border-radius: 20px;
            box-shadow: 0 4px 15px rgba(133, 131, 131, 0.15);
            width: 300px;
            height: auto;
            max-height: 120px;
            text-align: center;
            font-family: 'Arial', sans-serif;
            font-size: 14px;
            z-index: 1000;
            color: #333;
        }

        .slider-container label {
            display: block;
            margin-bottom: 10px;
            font-weight: bold;
            font-size: 16px;
            color: #555;
        }

        .slider-container input[type="range"]::-webkit-slider-thumb {
            -webkit-appearance: none;
            appearance: none;
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: #0078d4;
            border: 2px solid white;
            cursor: pointer;
            transition: transform 0.2s ease-in-out;
        }

        .slider-container input[type="ranger"]::-webkit-slider-thumb:hover {
            transform: scale(1.2);
        }

        .slider-container .opacity-value {
            margin-top: 10px;
            font-size: 14px;
            color: #0078d4;
            font-weight: bold;
        }

        #topheader img {
            height: 30px;
            margin: 0 5px 0 5px;
            align-items: flex-start;
            background-color: white;
        }

        #logo {
            padding-left: 10px;
            padding-right: 10px;
            max-height: 85%;
            max-width: 85%;
        }

        #overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: #000;
            filter: alpha(opacity=70);
            -moz-opacity: 0.7;
            -khtml-opacity: 0.7;
            opacity: 0.7;
            z-index: 100;
            display: none;
        }

        .popup-content {
            padding: 14px 10px;
            line-height: 1.5;
        }

        .cnt223 a {
            font: 24px bold;
            color: #Bb2424;
        }

        .popup-onload {
            margin: 0 auto;
            display: none;
            position: fixed;
            z-index: 101;
            top: 50%;
            left: 50%;
            margin-top: -300px;
            margin-left: -300px;
        }

        .cnt223 {
        min-width: 600px;
        width: 600px;
        min-height: 150px;
        margin: 100px auto;
        background: #f3f3f3;
        position: relative;
        z-index: 103;
        padding: 15px 35px;
        border-radius: 5px;
        box-shadow: 0 2px 5px #000;
        }

        .cnt223 p {
        clear: both;
        color: #555555;
        /* text-align: justify; */
        font-size: 20px;
        font-family: sans-serif;
        }

        .cnt223 p a {
        color: #d91900;
        font-weight: bold;
        }

        .cnt223 .x {
        float: right;
        height: 35px;
        left: 22px;
        position: relative;
        top: -25px;
        width: 34px;
        }

        .cnt223 .x:hover {
        cursor: pointer;
        }