body {
    margin: 0px;
    padding: 0px;
}


nav {
    background-color: black;
    box-sizing: border-box;
    width: 580px;
    z-index: 3;
    border-right: 16px double white;
    border-bottom-right-radius: 100px;
    box-shadow: 10px 0px 20px white;
}

nav li {
    padding: 10px 20px;
    text-align: center;
    box-shadow: 0px 0px 20px white;
    border-radius: 50px;
    margin: 15px;
}

nav li:hover {
    background-color: white;
    color: black;
    font-weight: 800;
    text-shadow: 0px 0px 14px black;
}

nav li a:hover {
    color: black;
}

nav li a {
    color: aliceblue;
    text-decoration: none;
    font-size: 32px;
}

nav ul {
    margin-top: 0px;
    box-sizing: border-box;
    padding: 17px 10px;
    list-style: none;
}

.top {
    background-color: rgba(11, 11, 11);
    color: white;
    font-size: 60px;
    display: flex;
    height: 10%;
    border-bottom: 10px double white;
    justify-content: center;
    text-shadow: 0px 0px 10px white;
}

.top b {
    margin: 7px auto 29px;
    display: block;
}

img[alt="My Logo"] {
    width: 70px;
    height: 70px;
    position: relative;
    top: 20px;
    border: 3px solid yellow;
    box-shadow: 0px 0px 18px white;
    border-radius: 100%;
}

.bx-menu {
    position: relative;
    top: 16px;
    left: 20px;
    font-size: 100px;
}

.sidebar {
    position: relative;
    left: -630px;
    transition: all 1.4s ease;
}

.sidebar.on {
    left: 0px;
}

#chevup {
    color: white;
    background-color: rgb(0, 0, 0, 0.4);
    border-radius: 100%;
    font-size: 90px;
    position: fixed;
    bottom: 7%;
    right: 7%;
    box-shadow: 0px 0px 14px black;
}

html {
    scroll-behavior: smooth;
}

@media (max-width:800px) and (min-width:400px) {
    .top {
        font-size: 28px;
    }

    .top b {
        margin-bottom: 20px;
    }

    #chevup {
        font-size: 70px;
    }

    img[alt="My Logo"] {
        width: 36px;
        height: 36px;
        top: 8px;
    }

    .bx-menu {
        position: relative;
        top: 14px;
        left: 17px;
        font-size: 50px;
    }

    nav {
        border-right: 8px double yellow;
        border-bottom-right-radius: 50px;
        width: 380px;
    }

    nav li {
        padding: 10px 8px;
        box-shadow: 0px 0px 10px white;
        margin: 15px 18px;
        box-shadow: 0px 0px 15px white;
    }

    nav li a {
        cursor: none;
        font-size: 20px;
    }
}

@media (max-width:400px) and (min-width:300px) {
    .top {
        font-size: 20px;
    }

    .top b {
        margin-bottom: 18px;
    }

    #chevup {
        font-size: 50px;
    }

    img[alt="My Logo"] {
        width: 33px;
        height: 33px;
        top: 7px;
    }

    .bx-menu {
        position: relative;
        top: 11px;
        left: 7px;
        font-size: 40px;
    }

    nav {
        border-right: 8px double yellow;
        border-bottom-right-radius: 50px;
        width: 310px;
    }

    nav ul {
        padding: 9px 3px 9px;
    }

    nav li {
        padding: 4px 5px;
        box-shadow: 0px 0px 10px white;
        margin: 12px 14px;
    }

    nav li a {
        font-size: 13px;
        cursor: none;
    }
}