屏幕中間的圖片+疊加層

Question

單擊圖像時，它會顯示在燈箱中。 現在，疊加層中的圖像放置在屏幕頂部，但是最好的解決方案是將其放置在用戶屏幕的中間。

代碼如下。

 // Create a lightbox (function() { var $lightbox = $("<div class='lightbox'></div>"); var $img = $("<img>"); var $caption = $("<p class='caption'></p>"); // Add image and caption to lightbox $lightbox .append($img) .append($caption); // Add lighbox to document $('body').append($lightbox); $('.lightbox-gallery img').click(function(e) { e.preventDefault(); // Get image link and description var src = $(this).attr("src"); var cap = $(this).attr("alt"); var txt = $(this).parent().find('.js-text').text() // Add data to lighbox $img.attr('src', src); $caption.text(txt); // Show lightbox $lightbox.fadeIn('fast'); $lightbox.click(function() { $lightbox.fadeOut('fast'); }); }); }()); 

 body{ background: linear-gradient(to bottom right, #b81d1d, #5F554C, #E4DFD8); font-family: "Open Sans", sans-serif; } .text { display: none; } .container{ max-width: 800px; margin: 5% auto; padding: 20px; background-color: #fff; overflow: hidden; box-sizing: border-box; box-shadow: 0 15px 20px -15px rgba(0, 0, 0, 0.3), 0 35px 50px -25px rgba(0, 0, 0, 0.3), 0 85px 60px -25px rgba(0, 0, 0, 0.1); } .text-center{ text-align: center; margin-bottom: 1em; } .lightbox-gallery { display: flex; flex-direction: row; flex-wrap: wrap; justify-content: center; } .lightbox-gallery div > img { max-width: 100%; display: block; } .lightbox-gallery div { margin: 10px; flex-basis: 180px; } @media only screen and (max-width: 480px) { .lightbox-gallery { flex-direction: column; align-items: center; } .lightbox > div { margin-bottom: 10px; } } /*Lighbox CSS*/ .lightbox{ display: none; width: 100%; height: 100%; background-color: rgba(0,0,0,.7); position: fixed; top: 0; left: 0; z-index: 20; padding-top: 30px; box-sizing: border-box; } .lightbox img{ display: block; margin: auto; } .lightbox .caption{ margin: 15px auto; width: 50%; text-align: center; font-size: 1em; line-height: 1.5; font-weight: 700; color: #eee; } 

 <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <div class="container"> <h2 class="text-center">Lightbox Gallery</h2> <div class="lightbox-gallery"> <div> <img src="http://placehold.it/300/f1b702/fff&text=image1" alt=""> <div class="js-text text">Test 1</div> </div> <div><img src="http://placehold.it/300/d2f1b2/222&text=image2" alt="Lorem ipsum dolor sit amet, consectetur adipisicing elit. Maxime accusamus officiis dignissimos doloribus consectetur harum eos sapiente optio aut minima."><div class="js-text text">Test 2</div></div> <div><img src="http://placehold.it/300/eee/000&text=image3" alt="Lorem ipsum dolor sit amet, consectetur adipisicing elit. Voluptates veritatis similique, amet, maiores soluta recusandae cupiditate, sed perspiciatis fugit minima, sunt dolores cum earum deserunt illo ipsum!"><div class="js-text text">Test 3</div></div> <div><img src="http://placehold.it/300/222/fff&text=image4" alt="Lorem ipsum dolor sit amet, consectetur adipisicing elit. Itaque laudantium dignissimos tenetur eos unde quidem repellat officiis nemo laboriosam necessitatibus deleniti commodi quis aliquid est atque tempora aut, nihil!"><div class="js-text text">Test</div></div> <div><img src="http://placehold.it/300/b47f99/000&text=image5" alt="Lorem ipsum dolor sit amet, consectetur adipisicing elit. Architecto minus consequatur soluta quaerat itaque, laboriosam quis a facilis, cumque, deleniti quas aperiam voluptate dolore. Enim nostrum sit eaque, porro eligendi illo placeat?"><div class="js-text text">Test</div></div> <div><img src="http://placehold.it/300/e1d400/000&text=image6" alt="Lorem ipsum dolor sit amet, consectetur adipisicing elit. Sequi suscipit quam, id aliquam totam aperiam quas rem debitis voluptatem pariatur, illo accusamus facilis eius ipsa! Reprehenderit libero, quas iste repudiandae distinctio, quos dignissimos."><div class="js-text text">Test</div></div> </div> </div> 

這是codepen：

Codepen網址： https ：//codepen.io/jonathandion/pen/EmPbvb

Answer 1

這是一個flexbox解決方案：

codepen

 // Create a lightbox (function() { var $lightbox = $("<div class='lightbox'></div>"); var $img = $("<img>"); var $caption = $("<p class='caption'></p>"); // Add image and caption to lightbox $lightbox .append($img) .append($caption); // Add lighbox to document $('body').append($lightbox); $('.lightbox-gallery img').click(function(e) { e.preventDefault(); // Get image link and description var src = $(this).attr("src"); var cap = $(this).attr("alt"); var txt = $(this).parent().find('.js-text').text() // Add data to lighbox $img.attr('src', src); $caption.text(txt); // Show lightbox $lightbox.fadeIn('fast').css('display', 'flex'); $lightbox.click(function() { $lightbox.fadeOut('fast'); }); }); }()); 

 body { background: linear-gradient(to bottom right, #b81d1d, #5F554C, #E4DFD8); font-family: "Open Sans", sans-serif; } .text { display: none; } .container { max-width: 800px; margin: 5% auto; padding: 20px; background-color: #fff; overflow: hidden; box-sizing: border-box; box-shadow: 0 15px 20px -15px rgba(0, 0, 0, 0.3), 0 35px 50px -25px rgba(0, 0, 0, 0.3), 0 85px 60px -25px rgba(0, 0, 0, 0.1); } .text-center { text-align: center; margin-bottom: 1em; } .lightbox-gallery { display: flex; flex-direction: row; flex-wrap: wrap; justify-content: center; } .lightbox-gallery div>img { max-width: 100%; display: block; } .lightbox-gallery div { margin: 10px; flex-basis: 180px; } @media only screen and (max-width: 480px) { .lightbox-gallery { flex-direction: column; align-items: center; } .lightbox>div { margin-bottom: 10px; } } /*Lighbox CSS*/ .lightbox { display: none; width: 100%; height: 100%; background-color: rgba(0, 0, 0, .7); position: fixed; top: 0; left: 0; z-index: 20; padding-top: 30px; box-sizing: border-box; flex-direction: column; align-items: center; justify-content: center; } .lightbox img { display: block; } .lightbox .caption { margin: 15px auto; width: 50%; text-align: center; font-size: 1em; line-height: 1.5; font-weight: 700; color: #eee; } 

 <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <div class="container"> <h2 class="text-center">Lightbox Gallery</h2> <div class="lightbox-gallery"> <div> <img src="http://placehold.it/300/f1b702/fff&text=image1" alt=""> <div class="js-text text">Test 1</div> </div> <div><img src="http://placehold.it/300/d2f1b2/222&text=image2" alt="Lorem ipsum dolor sit amet, consectetur adipisicing elit. Maxime accusamus officiis dignissimos doloribus consectetur harum eos sapiente optio aut minima."> <div class="js-text text">Test 2</div> </div> <div><img src="http://placehold.it/300/eee/000&text=image3" alt="Lorem ipsum dolor sit amet, consectetur adipisicing elit. Voluptates veritatis similique, amet, maiores soluta recusandae cupiditate, sed perspiciatis fugit minima, sunt dolores cum earum deserunt illo ipsum!"> <div class="js-text text">Test 3</div> </div> <div><img src="http://placehold.it/300/222/fff&text=image4" alt="Lorem ipsum dolor sit amet, consectetur adipisicing elit. Itaque laudantium dignissimos tenetur eos unde quidem repellat officiis nemo laboriosam necessitatibus deleniti commodi quis aliquid est atque tempora aut, nihil!"> <div class="js-text text">Test</div> </div> <div><img src="http://placehold.it/300/b47f99/000&text=image5" alt="Lorem ipsum dolor sit amet, consectetur adipisicing elit. Architecto minus consequatur soluta quaerat itaque, laboriosam quis a facilis, cumque, deleniti quas aperiam voluptate dolore. Enim nostrum sit eaque, porro eligendi illo placeat?"> <div class="js-text text">Test</div> </div> <div><img src="http://placehold.it/300/e1d400/000&text=image6" alt="Lorem ipsum dolor sit amet, consectetur adipisicing elit. Sequi suscipit quam, id aliquam totam aperiam quas rem debitis voluptatem pariatur, illo accusamus facilis eius ipsa! Reprehenderit libero, quas iste repudiandae distinctio, quos dignissimos."> <div class="js-text text">Test</div> </div> </div> </div> 

Answer 2

添加padding-bottom: 55px; 到.lightbox類，並向.lightbox添加height:100% .lightbox img此類。 希望這對您有用。

這是完整的工作示例。

 // Create a lightbox (function() { var $lightbox = $("<div class='lightbox'></div>"); var $img = $("<img>"); var $caption = $("<p class='caption'></p>"); // Add image and caption to lightbox $lightbox .append($img) .append($caption); // Add lighbox to document $('body').append($lightbox); $('.lightbox-gallery img').click(function(e) { e.preventDefault(); // Get image link and description var src = $(this).attr("src"); var cap = $(this).attr("alt"); var txt = $(this).parent().find('.js-text').text() // Add data to lighbox $img.attr('src', src); $caption.text(txt); // Show lightbox $lightbox.fadeIn('fast'); $lightbox.click(function() { $lightbox.fadeOut('fast'); }); }); }(jQuery)); 

 body{ background: linear-gradient(to bottom right, #b81d1d, #5F554C, #E4DFD8); font-family: "Open Sans", sans-serif; } .text { display: none; } .container{ max-width: 800px; margin: 5% auto; padding: 20px; background-color: #fff; overflow: hidden; box-sizing: border-box; box-shadow: 0 15px 20px -15px rgba(0, 0, 0, 0.3), 0 35px 50px -25px rgba(0, 0, 0, 0.3), 0 85px 60px -25px rgba(0, 0, 0, 0.1); } .text-center{ text-align: center; margin-bottom: 1em; } .lightbox-gallery { display: flex; flex-direction: row; flex-wrap: wrap; justify-content: center; } .lightbox-gallery div > img { max-width: 100%; display: block; } .lightbox-gallery div { margin: 10px; flex-basis: 180px; } @media only screen and (max-width: 480px) { .lightbox-gallery { flex-direction: column; align-items: center; } .lightbox > div { margin-bottom: 10px; } } /*Lighbox CSS*/ .lightbox{ background-color: rgba(0, 0, 0, 0.7); bottom: 0; box-sizing: border-box; display: none; height: 100%; left: 0; padding-bottom: 55px; padding-top: 30px; position: fixed; right: 0; top: 0; width: 100%; z-index: 20; } .lightbox img{ display: block; margin: auto; height:100%; } .lightbox .caption{ margin: 15px auto; width: 50%; text-align: center; font-size: 1em; line-height: 1.5; font-weight: 700; color: #eee; } 

 <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script> <div class="container"> <h2 class="text-center">Lightbox Gallery</h2> <div class="lightbox-gallery"> <div> <img src="http://placehold.it/300/f1b702/fff&text=image1" alt=""> <div class="js-text text">Test 1</div> </div> <div><img src="http://placehold.it/300/d2f1b2/222&text=image2" alt="Lorem ipsum dolor sit amet, consectetur adipisicing elit. Maxime accusamus officiis dignissimos doloribus consectetur harum eos sapiente optio aut minima."><div class="js-text text">Test 2</div></div> <div><img src="http://placehold.it/300/eee/000&text=image3" alt="Lorem ipsum dolor sit amet, consectetur adipisicing elit. Voluptates veritatis similique, amet, maiores soluta recusandae cupiditate, sed perspiciatis fugit minima, sunt dolores cum earum deserunt illo ipsum!"><div class="js-text text">Test 3</div></div> <div><img src="http://placehold.it/300/222/fff&text=image4" alt="Lorem ipsum dolor sit amet, consectetur adipisicing elit. Itaque laudantium dignissimos tenetur eos unde quidem repellat officiis nemo laboriosam necessitatibus deleniti commodi quis aliquid est atque tempora aut, nihil!"><div class="js-text text">Test</div></div> <div><img src="http://placehold.it/300/b47f99/000&text=image5" alt="Lorem ipsum dolor sit amet, consectetur adipisicing elit. Architecto minus consequatur soluta quaerat itaque, laboriosam quis a facilis, cumque, deleniti quas aperiam voluptate dolore. Enim nostrum sit eaque, porro eligendi illo placeat?"><div class="js-text text">Test</div></div> <div><img src="http://placehold.it/300/e1d400/000&text=image6" alt="Lorem ipsum dolor sit amet, consectetur adipisicing elit. Sequi suscipit quam, id aliquam totam aperiam quas rem debitis voluptatem pariatur, illo accusamus facilis eius ipsa! Reprehenderit libero, quas iste repudiandae distinctio, quos dignissimos."><div class="js-text text">Test</div></div> </div> </div>