Responsive Horizontal Scrolling Menu

Question

http://healthunit.com has a clean horizontal scrolling menu at the top of the screen once you view it from a mobile phone device. I\'m trying to mimic that same exact functi

Answer 1

Now that the healthunit site has changed the original question is not completely clear.

To make a nav menu that scrolls horizontally uses arrow buttons (instead of scrollbar) can be implemented with a little jQuery and easily converted to pure JavaScript.

var $bar = $('.nav');
var $container = $('#outer');
var widths = {};
var scrollOffset = 0;

var container = document.getElementById("outer");
var bar = document.getElementById("bar");

function setMetrics() {
    metrics = {
        bar: bar.scrollWidth||0,
        container: container.clientWidth||0,
        left: parseInt(bar.offsetLeft),
        getHidden() {
            return (this.bar+this.left)-this.container
        }
    }

    updateArrows();
}

function doSlide(direction){
    setMetrics();
    var pos = metrics.left;
    if (direction==="right") {
        amountToScroll = -(Math.abs(pos) + Math.min(metrics.getHidden(), metrics.container));
    }
    else {
        amountToScroll = Math.min(0, (metrics.container + pos));
    }
    $bar.css("left", amountToScroll);
    setTimeout(function(){
        setMetrics();
    },400)
}

function updateArrows() {
    if (metrics.getHidden() === 0) {
        $(".toggleRight").addClass("text-light");
    }
    else {
        $(".toggleRight").removeClass("text-light");
    }

    if (metrics.left === 0) {
        $(".toggleLeft").addClass("text-light");
    }
    else {
        $(".toggleLeft").removeClass("text-light");
    }
}

function adjust(){
    $bar.css("left", 0);
    setMetrics();
}

$(".toggleRight").click(function(){
    doSlide("right");
});

$(".toggleLeft").click(function(){
    doSlide("left");
});

$(window).on("resize",function(){
    // reset to left pos 0 on window resize
    adjust();
});

setMetrics();

Demo: https://www.codeply.com/go/HgAVBVfQFY