html{
            color:white;
            background-color: rgb(40, 60, 146);
            font-family: "Trebuchet MS", sans-serif;
        }
        h1{font-size:500%}
        h2{font-size: 125%;}
        h3{font-size: 125%}
        h4{font-size: 110%; margin: 0; margin-top: 0.1%;}
        h5{font-size: 90%; margin-bottom: 0}
        h6{font-size: 80%; font-weight: 800; margin: 0;}
        header { 
            position: absolute;
            top: 0;
            left: 0;
            width: 95%;
            z-index: 10;
            padding: 1%;
            margin-right: 100%;
            display:flex;
            gap: 2.5%;
            justify-content: center;
            font-family: sans-serif;
            a{color: white; font-size: 50%;}
        }
        a{
            color:#ff1818;   
            text-decoration:none;
            font-size: 100%;
            font-weight:900;
        }
        pre{
            font-family: "Trebuchet MS", sans-serif;
            font-size: 80%;
        }
        .how{
            img{height: 50vh;}
        }
        .First_page{
            img{max-width: 60%; height: auto;}
            display: flex;
            justify-content: center;
            align-items: center;
            font-size: 2rem;
        }
        .scroller {
            height: 95vh;
            overflow-y: scroll;
            scroll-snap-type: y mandatory;
        }
        section {
            height: 95vh;
            width: 100%;
            scroll-snap-align: start; 
            flex-direction: column;
            justify-content: center;
            padding: 4%;
            box-sizing: border-box;
            display:flex;
            position: relative;
        }
        .project{
            
        }
        .talk{
            img{   
                height : 7vh; 
                width: auto; 
                object-fit: cover; 
                border-radius: 50%; 
                border: 2px solid white; 
                flex-shrink: 0;
                max-width: 7vh;
                margin-bottom: 1vh;
            }
        }
        .Presentation{
            display: flex;
            margin: 0 auto;
            text-align: left;
            align-items: center;
            gap: 4%;
            padding: 1%;
            max-width: 900px;
            a{color: white;}
        }
        .title{
            text-align: center;
            margin: 5vh auto 0;
            padding-right: 35%;
            max-width: 900px;
        }
        .txt{
            flex: 1;
            text-align: left;
            line-height: 160%;
            font-size: 10px;
            min-width: 50px;
            max-width: 90vh;
        }
        .mini-footer {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            background-color: rgb(31, 31, 31);
            color: white;
            padding: 10px 20px;
            display: flex; 
            align-items: center; 
            justify-content: flex-start; 
            box-sizing: border-box;
        }
        .mini-footer .copyright {
            margin: 0;
            margin-right: 1%; 
            font-size: 80%;
        }

        .mini-footer img {
            height: 35px;
            width: auto;    
            vertical-align: middle; 
            margin-left: 35px;
        }
        #On_top {
            display: none; 
            position: fixed; 
            bottom: 20px; 
            right: 30px; 
            z-index: 99; 
            border: none;
            outline: none;
            background-color: black;
            color: white;
            cursor: pointer;
            padding: 15px;
            border-radius: 50%;
            font-size: 18px;
            transition: opacity 0.3s;
        }