style.css

body {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        .slideshow {
            position: absolute;
            top: 0;
            left: 0;
            opacity: 0;
            height: 100%;
            width: 100%;

        }

        .slideshow.visibility {
            opacity: 1;
        }

        #left-arrow {
            position: absolute;
            left: 20px;
            top: 40%;
            font-size: 100px;
            color: red;
            z-index: 1;
            cursor: pointer;
        }

        #right-arrow {
            position: absolute;
            right: 20px;
            top: 40%;
            font-size: 100px;
            color: red;
            z-index: 1;
            cursor: pointer;
        }

        .circle.dot {
            background-color: red;
        }

        .circlecont {
            position: absolute;
            left: 45%;
            bottom: 20px;
        }

        .circle {
            display: inline-block;
            width: 15px;
            height: 15px;
            border: 2px solid #e50910;
            border-radius: 20px;
            cursor: pointer;
            transition: 1s;

        }

        .circle:hover {
            background-color: rgb(211, 137, 137);
        }

        .circle.dot {
            background-color: rgb(179, 9, 9);
        }