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How can I highlight position in nav bar for single-page website?

I want to let my users know where they are in my one page website by changing the nav elements of color per part of the website.

<!DOCTYPE html>
<html lang="en">
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>nasa api</title>
    <link href="https://fonts.googleapis.com/css?family=Roboto" rel="stylesheet">
    <link rel="stylesheet" href="css/screen.css">
    <link rel="shortcut icon" href="img/NASA_logo.svg.png">
    <header id="home">
            <a href="https://www.nasa.gov/" target="_blank"><img id="nasalogo" src="img/NASA_logo.svg.png" alt="nasa logo" width="80" height="80"></a>
                <li><a href="#home">Home</a></li>
                <li><a href="#doelgroep">Doelgroep</a></li>
                <li><a href="#data">Data</a></li>
                <li><a href="#foto">Foto</a></li>
                <li><a href="#overmij">Over mij</a></li>
        <img src="img/astronomy-atmosphere-earth-220201.png" alt="header foto" width="100%" height="100%">
        <div id="doelgroep">
            <h1 class="h1-delen">DOELGROEP</h1>
            <div id="DG-info">
                <div id="DG-text">

                    <p>Logischer wijs heb ik deze site ontworpen voor mensen<br>
                        die geïnteresseerd zijn in het concept ‘space’<br>
                        en alles wat hierbij komt kijken,<br>
                        maar ook voor de alledaagse internetgebruiker<br>
                        die houdt van eens iets anders.</p>
                    <p>Het uit eindelijke besluit is dat dit een website is<br>
                        voor mensen die van space houden en graag meer over weten.<br>
                        Of voor mensen die de dag willen starten<br>
                        met een foto van space of wat data over space.</p>
                <img id="img-data" src="img/pexels-photo-373543.jpg" alt="data">
        <div id="data">
            <h1 class="h1-delen">NASA DATA</h1>
            <div id="grafieken">
                <canvas id="myChart" height="40vh" width="80vw"></canvas>
        <div id="foto">
            <h1 class="h1-delen">FOTO VAN DE DAG</h1>
            <div class="img-box">
                <div class="side-a"></div>
                <div class="side-b"></div>
        <div id="overmij">
            <h1 class="h1-delen">OVER MIJ</h1>
            <div id="OM-tekst">
                <div class="OM-p">
                    <p class="OM-titel">Lijnen HTML</p>
                    <p class="OM-tekst">98</p>
                <div class="OM-p">
                    <p class="OM-titel">Lijnen CSS</p>
                    <p class="OM-tekst">288</p>
                <div class="OM-p">
                    <p class="OM-titel">Lijnen JS</p>
                    <p class="OM-tekst">54</p>
                <div class="OM-p">
                    <p class="OM-titel">Redbulls</p>
                    <p class="OM-tekst">13</p>
        <img src="img/flight-sky-earth-space.png" alt="racket lansering" width="100%" height="100%">
        <h6 id="madeby">Made by : <a href="http://student.howest.be/conor.vanoystaeyen/portfolio/" target="_blank" id="website-link">Conor Vanoystaeyen</a></h6>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.4.0/Chart.min.js"></script>
    <script src="https://ajax.aspnetcdn.com/ajax/jQuery/jquery-3.3.1.min.js"></script>
    <script src="js/app.js"></script>

How can I do this?

1 Answer

Steven Parker
Steven Parker
221,328 Points

You didn't include your CSS or JavaScript code, but that's where you'd accomplish this.

You can create a scroll event handler to check the page position after any movement, and adjust the highlighting by adding and removing the appropriate CSS class for the effect.