Responsive Image Slider

2091 Andev.web

Open In Editor Video Publish Your Code

CSS

*,
*::after,
*::before {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --active-color: hsl(204 100 53);
    --bg-color: #e1e3e5;
    --icon-default: hsl(203 5 75);
    --icon-accent: hsl(203 15 98);
    --navigation-color: hsl(203 5 25 / 0.3);
}

body {
    min-block-size: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: var(--bg-color);
}

.image-slider {
    display: flex;
    flex-flow: column;
    width: clamp(360px, 96vw, 830px);
    aspect-ratio: 16 / 9;
    min-height: 300px;
    overflow: hidden;
    border-radius: 8px;
    container-type: inline-size;
    contain: content;
    background-color: #0006;
    box-shadow: rgba(0, 0, 0, 0.2) 0px 1px 2px, rgba(0, 0, 0, 0.3) 0px 2px 4px,
        rgba(0, 0, 0, 0.25) 0px 4px 8px, rgba(0, 0, 0, 0.2) 0px 8px 16px,
        rgba(0, 0, 0, 0.15) 0px 16px 32px;
}

.slider__content {
    flex-grow: 1;
    display: flex;
    justify-content: space-between;
}

.slider-control--button {
    border: 0;
    background: 0;
    outline: 0;
    cursor: pointer;
    place-content: center;
    padding-inline: 3vw;
    z-index: 1;
    display: grid;
}

.icon {
    height: 2rem;
    width: 2rem;
    fill: var(--icon-default);
    border-radius: 50%;
}

.slider-control--button:where(:hover) {
    background-image: linear-gradient(
        to var(--position),
        #0000 0%,
        #0002,
        80%,
        #0006 100%
    );
    .icon {
        fill: var(--icon-accent);
        background: #0001;
    }
}

.slider-control--button:active {
    outline: 0.2em solid hsl(204 100 53);
    outline-offset: -0.5em;
}

.prev-button {
    --position: left;
}
.next-button {
    --position: right;
}

.image-display {
    position: fixed;
    inset: 0;
}

.slider-navigation {
    z-index: 10;
    display: grid;
    grid-auto-flow: column;
    grid-template-columns: repeat(6, 1fr);
    grid-auto-columns: 100%;
    gap: 1.25rem;
    padding: 1rem;
    place-content: center;
    background-color: var(--navigation-color);
    backdrop-filter: blur(6px);
}

.nav-button {
    display: grid;
    width: 100%;
    height: 100%;
    border-radius: 0.5em;
    overflow: hidden;
    align-items: center;
    justify-content: center;
    border: 0;
    aspect-ratio: 16 / 9;
    transition: filter 150ms linear, scale 266ms ease;
}

.thumbnail {
    display: block;
    max-width: 100%;
    width: 100%;
    object-fit: cover;
    height: 100%;
}

.nav-button[aria-selected="true"] {
    scale: 1.1;
}

.nav-button[aria-selected="true"],
.nav-button:focus-visible {
    outline: 0.2em solid var(--active-color);
    outline-offset: 0.2em;
}

.nav-button[aria-selected="false"] {
    filter: opacity(0.7);
}

.nav-button[aria-selected="false"]:where(:hover, :focus-visible) {
    filter: opacity(1);
}

@container (max-width: 660px) {
    .nav-button:not(:has(img)) {
        background-color: rgb(241, 235, 232);
    }

.slider-navigation {
        display: flex;
        justify-content: center;
        padding-block: 1.5em;
    }

.nav-button {
        inline-size: 0.625rem;
        aspect-ratio: 1;
        border-radius: 50%;
    }

.nav-button > .thumbnail {
        display: none;
    }

.nav-button[aria-selected="true"] {
        background-color: black;
        scale: 1.5;
    }
}

JS

class Slider {
    constructor(slider) {
        this.slider = slider;
        this.display = slider.querySelector(".image-display");
        this.navButtons = Array.from(slider.querySelectorAll(".nav-button"));
        this.prevButton = slider.querySelector(".prev-button");
        this.nextButton = slider.querySelector(".next-button");
        this.sliderNavigation = slider.querySelector(".slider-navigation");
        this.currentSlideIndex = 0;
        this.preloadedImages = {};

this.initialize();
    }

initialize() {
        this.setupSlider();
        this.preloadImages();
        this.eventListeners();
    }

setupSlider() {
        this.showSlide(this.currentSlideIndex);
    }

showSlide(index) {
        this.currentSlideIndex = index;
        const navButtonImg = this.navButtons[
            this.currentSlideIndex
        ].querySelector("img");
        if (navButtonImg) {
            const imgClone = navButtonImg.cloneNode();
            this.display.replaceChildren(imgClone);
        }
        this.updateNavButtons();
    }

updateNavButtons() {
        this.navButtons.forEach((button, buttonIndex) => {
            const isSelected = buttonIndex === this.currentSlideIndex;
            button.setAttribute("aria-selected", isSelected);
            if (isSelected) button.focus();
        });
    }

preloadImages() {
        this.navButtons.forEach((button) => {
            const imgElement = button.querySelector("img");
            if (imgElement) {
                const imgSrc = imgElement.src;
                if (!this.preloadedImages[imgSrc]) {
                    this.preloadedImages[imgSrc] = new Image();
                    this.preloadedImages[imgSrc].src = imgSrc;
                }
            }
        });
    }

eventListeners() {
        document.addEventListener("keydown", (event) => {
            this.handleAction(event.key);
        });

this.sliderNavigation.addEventListener("click", (event) => {
            const targetButton = event.target.closest(".nav-button");
            const index = targetButton
                ? this.navButtons.indexOf(targetButton)
                : -1;
            if (index !== -1) {
                this.showSlide(index);
            }
        });

this.prevButton.addEventListener("click", () =>
            this.handleAction("prev")
        );
        this.nextButton.addEventListener("click", () =>
            this.handleAction("next")
        );
    }

handleAction(action) {
        if (action === "Home") {
            this.currentSlideIndex = 0;
        } else if (action === "End") {
            this.currentSlideIndex = this.navButtons.length - 1;
        } else if (action === "ArrowRight" || action === "next") {
            this.currentSlideIndex =
                (this.currentSlideIndex + 1) % this.navButtons.length;
        } else if (action === "ArrowLeft" || action === "prev") {
            this.currentSlideIndex =
                (this.currentSlideIndex - 1 + this.navButtons.length) %
                this.navButtons.length;
        }

this.showSlide(this.currentSlideIndex);
    }
}

const ImageSlider = new Slider(document.querySelector(".image-slider"));

Responsive Image Slider

Recommended

Swiper Blog Slider Example

Double slider Sign in/up Form

CSS Loading Animation with Background Image

HTML

CSS

JS

Recommended

Swiper Blog Slider Example

Double slider Sign in/up Form

CSS Loading Animation with Background Image

HTMLCopy

CSSCopy

JSCopy

HTML

CSS

JS