:root {
                --r-main-color: #000000;
                --r-heading-color: #000000;
                --r-main-font-size: 35px;
            }
            .reveal {
                background: #ffffff;
                font-family: "League Gothic, Impact, sans-serif";
            }
            .reveal img {
                border-radius: 10px;
                box-shadow:
                    rgba(50, 50, 93, 0.25) 0px 6px 12px -2px,
                    rgba(0, 0, 0, 0.3) 0px 3px 7px -3px;
                display: block;
                margin: 10px auto 0 auto;
            }
            iframe,
            video {
                margin-top: 10px;
                border-radius: 10px;
                box-shadow:
                    rgba(50, 50, 93, 0.25) 0px 6px 12px -2px,
                    rgba(0, 0, 0, 0.3) 0px 3px 7px -3px;
            }
            ul,
            li,
            p {
                margin-top: 5px;
            }
            code {
                border-radius: 5px;
                font-size: 16px;
            }