Belajar cara membuat galeri gambar modal (lightbox) dengan CSS dan JavaScript.
Section Artikel
Lightbox (Galeri Gambar Modal)
Klik salah satu gambar untuk membuka lightbox.
Contoh:
<!DOCTYPE html> <html> <meta name="viewport" content="width=device-width, initial-scale=1"> <style> body { font-family: Verdana, sans-serif; margin: 0; } * { box-sizing: border-box; } .row > .column { padding: 0 8px; } .row:after { content: ""; display: table; clear: both; } .column { float: left; width: 25%; } .modal { display: none; position: fixed; z-index: 1; padding-top: 100px; left: 0; top: 0; width: 100%; height: 100%; overflow: auto; background-color: black; } .modal-content { position: relative; background-color: #fefefe; margin: auto; padding: 0; width: 90%; max-width: 1200px; } .close { color: white; position: absolute; top: 10px; right: 25px; font-size: 35px; font-weight: bold; } .close:hover, .close:focus { color: #999; text-decoration: none; cursor: pointer; } .mySlides { display: none; } .cursor { cursor: pointer; } .prev, .next { cursor: pointer; position: absolute; top: 50%; width: auto; padding: 16px; margin-top: -50px; color: white; font-weight: bold; font-size: 20px; transition: 0.6s ease; border-radius: 0 3px 3px 0; user-select: none; -webkit-user-select: none; } .next { right: 0; border-radius: 3px 0 0 3px; } .prev:hover, .next:hover { background-color: rgba(0, 0, 0, 0.8); } .numbertext { color: #f2f2f2; font-size: 12px; padding: 8px 12px; position: absolute; top: 0; } img { margin-bottom: -4px; } .caption-container { text-align: center; background-color: black; padding: 2px 16px; color: white; } .demo { opacity: 0.6; } .active, .demo:hover { opacity: 1; } img.hover-shadow { transition: 0.3s; } .hover-shadow:hover { box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19); } </style> <body> <h2 style="text-align:center">Lightbox</h2> <div class="row"> <div class="column"> <img src="//dosenit.com/wp-content/uploads/2020/12/img_nature_wide.jpg" style="width:100%" title="openModal();currentSlide(1)" class="hover-shadow cursor"> </div> <div class="column"> <img src="//dosenit.com/wp-content/uploads/2020/12/img_snow_wide-1.jpg" style="width:100%" title="openModal();currentSlide(2)" class="hover-shadow cursor"> </div> <div class="column"> <img src="//dosenit.com/wp-content/uploads/2020/12/img_mountains_wide.jpg" style="width:100%" title="openModal();currentSlide(3)" class="hover-shadow cursor"> </div> <div class="column"> <img src="//dosenit.com/wp-content/uploads/2020/12/img_lights_wide.jpg" style="width:100%" title="openModal();currentSlide(4)" class="hover-shadow cursor"> </div> </div> <div id="myModal" class="modal"> <span class="close cursor" title="closeModal()">×</span> <div class="modal-content"> <div class="mySlides"> <div class="numbertext">1 / 4</div> <img src="//dosenit.com/wp-content/uploads/2020/12/img_nature_wide.jpg" style="width:100%"> </div> <div class="mySlides"> <div class="numbertext">2 / 4</div> <img src="//dosenit.com/wp-content/uploads/2020/12/img_snow_wide-1.jpg" style="width:100%"> </div> <div class="mySlides"> <div class="numbertext">3 / 4</div> <img src="//dosenit.com/wp-content/uploads/2020/12/img_mountains_wide.jpg" style="width:100%"> </div> <div class="mySlides"> <div class="numbertext">4 / 4</div> <img src="//dosenit.com/wp-content/uploads/2020/12/img_lights_wide.jpg" style="width:100%"> </div> <a class="prev" title="plusSlides(-1)">❮</a> <a class="next" title="plusSlides(1)">❯</a> <div class="caption-container"> <p id="caption"></p> </div> <div class="column"> <img class="demo cursor" src="//dosenit.com/wp-content/uploads/2020/12/img_nature_wide.jpg" style="width:100%" title="currentSlide(1)" alt="Nature and sunrise"> </div> <div class="column"> <img class="demo cursor" src="//dosenit.com/wp-content/uploads/2020/12/img_snow_wide-1.jpg" style="width:100%" title="currentSlide(2)" alt="Snow"> </div> <div class="column"> <img class="demo cursor" src="//dosenit.com/wp-content/uploads/2020/12/img_mountains_wide.jpg" style="width:100%" title="currentSlide(3)" alt="Mountains and fjords"> </div> <div class="column"> <img class="demo cursor" src="//dosenit.com/wp-content/uploads/2020/12/img_lights_wide.jpg" style="width:100%" title="currentSlide(4)" alt="Northern Lights"> </div> </div> </div> <script> function openModal() { document.getElementById("myModal").style.display = "block"; } function closeModal() { document.getElementById("myModal").style.display = "none"; } var slideIndex = 1; showSlides(slideIndex); function plusSlides(n) { showSlides(slideIndex += n); } function currentSlide(n) { showSlides(slideIndex = n); } function showSlides(n) { var i; var slides = document.getElementsByClassName("mySlides"); var dots = document.getElementsByClassName("demo"); var captionText = document.getElementById("caption"); if (n > slides.length) {slideIndex = 1} if (n < 1) {slideIndex = slides.length} for (i = 0; i < slides.length; i++) { slides[i].style.display = "none"; } for (i = 0; i < dots.length; i++) { dots[i].className = dots[i].className.replace(" active", ""); } slides[slideIndex-1].style.display = "block"; dots[slideIndex-1].className += " active"; captionText.innerHTML = dots[slideIndex-1].alt; } </script> </body> </html>
Cara Membuat Lightbox
Contoh berikut menggabungkan kode dari Modal dan Slideshow untuk membuat lightbox.
Langkah 1) Tambahkan HTML
Contoh:
<!-- Gambar digunakan untuk membuka lightbox --> <div class="row"> <div class="column"> <img src="img1.jpg" title="openModal();currentSlide(1)" class="hover-shadow"> </div> <div class="column"> <img src="img2.jpg" title="openModal();currentSlide(2)" class="hover-shadow"> </div> <div class="column"> <img src="img3.jpg" title="openModal();currentSlide(3)" class="hover-shadow"> </div> <div class="column"> <img src="img4.jpg" title="openModal();currentSlide(4)" class="hover-shadow"> </div> </div> <!-- Modal/Lightbox --> <div id="myModal" class="modal"> <span class="close cursor" title="closeModal()">×</span> <div class="modal-content"> <div class="mySlides"> <div class="numbertext">1 / 4</div> <img src="img1_wide.jpg" style="width:100%"> </div> <div class="mySlides"> <div class="numbertext">2 / 4</div> <img src="img2_wide.jpg" style="width:100%"> </div> <div class="mySlides"> <div class="numbertext">3 / 4</div> <img src="img3_wide.jpg" style="width:100%"> </div> <div class="mySlides"> <div class="numbertext">4 / 4</div> <img src="img4_wide.jpg" style="width:100%"> </div> <!-- Next/previous control --> <a class="prev" title="plusSlides(-1)">❮</a> <a class="next" title="plusSlides(1)">❯</a> <!-- Caption text --> <div class="caption-container"> <p id="caption"></p> </div> <!-- Thumbnail image controls --> <div class="column"> <img class="demo" src="img1.jpg" title="currentSlide(1)" alt="Nature"> </div> <div class="column"> <img class="demo" src="img2.jpg" title="currentSlide(2)" alt="Snow"> </div> <div class="column"> <img class="demo" src="img3.jpg" title="currentSlide(3)" alt="Mountains"> </div> <div class="column"> <img class="demo" src="img4.jpg" title="currentSlide(4)" alt="Lights"> </div> </div> </div>
Langkah 2) Tambahkan CSS
Contoh:
.row > .column { padding: 0 8px; } .row:after { content: ""; display: table; clear: both; } /* Buat empat kolom yang sama yang mengapung di samping satu sama lain */ .column { float: left; width: 25%; } /* Modal (background) */ .modal { display: none; position: fixed; z-index: 1; padding-top: 100px; left: 0; top: 0; width: 100%; height: 100%; overflow: auto; background-color: black; } /* Modal Content */ .modal-content { position: relative; background-color: #fefefe; margin: auto; padding: 0; width: 90%; max-width: 1200px; } /* Tombol Close */ .close { color: white; position: absolute; top: 10px; right: 25px; font-size: 35px; font-weight: bold; } .close:hover, .close:focus { color: #999; text-decoration: none; cursor: pointer; } /* Hide the slides by default */ .mySlides { display: none; } /* Tombol Next & previous */ .prev, .next { cursor: pointer; position: absolute; top: 50%; width: auto; padding: 16px; margin-top: -50px; color: white; font-weight: bold; font-size: 20px; transition: 0.6s ease; border-radius: 0 3px 3px 0; user-select: none; -webkit-user-select: none; } /* Posisikan "tombol Next" di sebelah kanan */ .next { right: 0; border-radius: 3px 0 0 3px; } /* Saat mengarahkan kursor, tambahkan warna background hitam dengan sedikit tembus pandang */ .prev:hover, .next:hover { background-color: rgba(0, 0, 0, 0.8); } /* Teks angka (1/3 etc) */ .numbertext { color: #f2f2f2; font-size: 12px; padding: 8px 12px; position: absolute; top: 0; } /* Caption text */ .caption-container { text-align: center; background-color: black; padding: 2px 16px; color: white; } img.demo { opacity: 0.6; } .active, .demo:hover { opacity: 1; } img.hover-shadow { transition: 0.3s; } .hover-shadow:hover { box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19); }
Langkah 3) Tambahkan JavaScript
Contoh:
<script> // Membuka Modal function openModal() { document.getElementById("myModal").style.display = "block"; } // Menutup Modal function closeModal() { document.getElementById("myModal").style.display = "none"; } var slideIndex = 1; showSlides(slideIndex); // Next/previous control function plusSlides(n) { showSlides(slideIndex += n); } // Thumbnail image control function currentSlide(n) { showSlides(slideIndex = n); } function showSlides(n) { var i; var slides = document.getElementsByClassName("mySlides"); var dots = document.getElementsByClassName("demo"); var captionText = document.getElementById("caption"); if (n > slides.length) {slideIndex = 1} if (n < 1) {slideIndex = slides.length} for (i = 0; i < slides.length; i++) { slides[i].style.display = "none"; } for (i = 0; i < dots.length; i++) { dots[i].className = dots[i].className.replace(" active", ""); } slides[slideIndex-1].style.display = "block"; dots[slideIndex-1].className += " active"; captionText.innerHTML = dots[slideIndex-1].alt; } </script>
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