* {
            margin: 0;
            padding: 0;
        }
        
        .header {
            position: fixed;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background-color: lightblue;
            width: 100%;
            padding: 20px 0;
            margin: 0;
            top: 0;
            border-bottom-style: solid;
            border-bottom: rgb(15, 107, 98);
        }
        
        .fio {
            display: flex;
            justify-content: left;
            color: black;
            margin-left: 15px;
            font-size: 18px;
            font-family: 'Oswald';
        }
        
        .labs {
            display: flex;
            margin-right: 15px;
            font-size: 16px;
        }
        
        .lab {
            display: flex;
            padding: 0 10px;
            font-size: 18px;
            font-family: 'Oswald';
        }
        
        .main {
            width: 100%;
        }
        
        .sec_1 {
            box-sizing: border-box;
            width: 100%;
            min-height: 600px;
            height: auto;
            overflow;
            background-color: cadetblue;
            margin: 0;
            margin-top: -64px;
            padding-top: 64px;
            background-clip: content-box;
        }
        
        .sec_2 {
            box-sizing: border-box;
            width: 100%;
            min-height: 600px;
            height: auto;
            background-color: rgb(114, 176, 179);
            margin: 0;
            margin-top: -64px;
            padding-top: 64px;
            background-clip: content-box;
        }
        
        main {
            margin-top: 64px;
        }
        
        h4 {
            font-size: 28px;
            text-align: center;
            padding: 15px;
            font-family: 'Oswald';
        }
        
        a {
            text-decoration: none;
            color: black;
        }
        
        .a:hover {
            text-decoration: underline black;
        }
        
        footer {
            display: flex;
            justify-content: space-between;
            background-color: lightblue;
            width: 100%;
            height: 70px;
            align-items: center;
        }
        
        .git {
            display: flex;
            height: 55px;
            width: 55px;
            padding-right: 15px;
        }
        
        .gmail {
            display: flex;
            height: 55px;
            width: 65px;
            padding-right: 0;
        }
        
        .up {
            display: flex;
            height: 55px;
            width: 55px;
            padding-right: 0px;
        }
        
        .left_footer {
            display: flex;
            align-items: center;
            width: 145px;
            height: 70px;
            padding-left: 20px;
        }
        
        .ph1 {
            display: flex;
            align-items: center;
            width: 550px;
            height: 270px;
            opacity: 1;
            margin-top: 15px;
        }
        
        .sec_1_inside {
            padding-bottom: 40px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
        }
        
        .description {
            display: flex;
            align-items: center;
            font-family: 'Oswald';
            font-size: 20px;
        }
        
        .btn_1 {
            display: flex;
            align-items: center;
            font-family: 'Oswald';
            font-size: 22;
            margin: 15px;
            padding: 8px 12px;
            border-radius: 5px;
            border-width: 0;
            display: inline-block;
            text-decoration: none;
            background-color: rgb(44, 194, 186);
            color: whitesmoke;
        }
        
        .btn_1:hover {
            background-color: teal;
            transition: 0.2s ease;
        }