CodePen Embed - JQ | Image Gallery Layout (JSON & Infinite Scroll)

<div class="wrapper">

  <!--
  ==================
  ==================
  Header
  ==================
  ==================
  -->
  <header>
    <div class="logo">
      <img src="http://tobiasbogliolo.com/assets/imgs/grama-about.png" alt="">
    </div>
    <div class="title">
      <h1>Grid & Pictures</h1>
      <h3>Tobías Bogliolo Photography</h3>
    </div>
    <nav>
      <ul>
        <li><a href="http://tobiasbogliolo.com/" target="_blank">Web</a></li>
        <li><a href="https://codepen.io/tobiasdev/" target="_blank">Codepen</a></li>
        <li><a href="http://cargocollective.com/bogliolo/Pattern-light-color" target="_blank">Cargo</a></li>
      </ul>
    </nav>
  </header>


  <!--
  ==================
  ==================
  Gallery
  ==================
  ==================
  -->
  <div class="grid">
    <!-- Optional preloaded items -->
    <!-- <div class="item"><img src="my-img.jpg" class="img-item" /></div> -->
  </div>


  <!--
  ==================
  ==================
  Footer
  ==================
  ==================
  -->
  <footer>
    <button class="append-button">Append items</button>
    <span class="status">No more items!</span>
  </footer>


  <!--
  ==================
  ==================
  Lightbox
  ==================
  ==================
  -->
  <div class="sandbox">
    <div class="lightbox"></div>
  </div>

</div>


<!-- Google Fonts -->
<link href="https://fonts.googleapis.com/css?family=Open+Sans:400,700|Playfair+Display:400,700,900" rel="stylesheet">

/* Color presets */
:root {
  --color-red: #FF5051;
  --color-darckgrey: #212121;
  --color-lightgrey: #E0E0E0;
  --color-black: #000000;
  --color-white: #FFFFFF;
}

/* Global */
* {
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
}

html {
  overflow-y:scroll; /* Force scrollbar. */
}

body {
  margin: 0;
  font-family: 'Open Sans', sans-serif;
  color: var(--color-darckgrey);
}

.wrapper {
  padding: 30px 10%;
  transition: ease .2s;
}

/* Header */
header {
  margin-bottom: 80px;
  text-align: center;
}

header .logo img {
  width: 110px;
}

header .title h1 {
  margin: .2em;
  font-family: 'Playfair Display', serif;
  font-size: 2.1em;
  font-weight: normal;
}

header .title h3 {
  margin: 0;
  font-size: .9em;
  font-weight: normal;
  letter-spacing: .1em;
}

header nav ul {
  list-style: none;
  padding: 0;
}

header nav ul li {
  display: inline-block;
}

header nav ul li a {
  position: relative;
  padding: .25em .5em;
  color: var(--color-lightgrey);
  font-size: 1em;
  text-decoration: none;
}

header nav ul li a:hover:after {
  content: '';
  display: block;
  width: 100%;
  -webkit-transform: translateY(-50%);
  -ms-transform: translateY(-50%);
  -o-transform: translateY(-50%);
  transform: translateY(-50%);
  position: absolute;
  top: 50%;
  left: 0;
  border-bottom: 4px solid var(--color-red);
}

/* Grid */
.grid {
  max-width: 1200px;
  margin: 0 auto;
}

/* Clearfix */
.grid:after {
  content: '';
  display: block;
  clear: both;
}

/* Grid items */
.item {
  display: inline-block;
  position: relative;
  width: 26%;
  margin: 20px 3.5%;
  margin-bottom: 80px;
  background: var(--color-red);
  cursor: pointer;
  /* Animation */
  animation-name: append-item;
  animation-duration: 0.6s;
  animation-iteration-count: 1;
  animation-direction: alternate;
  animation-timing-function: cubic-bezier(.42,.97,.52,1.49);
}

@keyframes append-item {
  0%  {
    -webkit-transform: translateY(250px);
    -ms-transform: translateY(250px);
    -o-transform: translateY(250px);
    transform: translateY(250px);
  }
  100%  {
    -webkit-transform: translateY(0px);
    -ms-transform: translateY(0px);
    -o-transform: translateY(0px);
    transform: translateY(0px);
  }
}

.item img {
  display: block;
  width: 100%;
  max-width: 100%;
}

.item-mid {
  width: 59%;
}

.item-big {
  width: 92%;
}

@media screen and (max-width: 768px){
  .item,
  .item-mid {
    width: 45%;
    margin: 15px 2.5%;
  }

  .item-big {
    width: 95%;
  }
}

@media screen and (max-width: 520px){
  .item,
  .item-mid,
  .item-big {
    width: 100%;
    margin: 15px 0%;
  }
}

/* Items */
.img-item {
  position: relative;
  transform: translate(1, 1);
  -webkit-filter: grayscale(0%);
  filter: grayscale(0%);
  box-shadow: 0px 0px 0px rgba(0,0,0,0), 0 0px 0px rgba(0,0,0,0);
  transition: ease .5s;
  will-change: transform, box-shadow;
}

.item:hover .img-item {
  transform: translate(-2em, -2em);
  -webkit-filter: grayscale(75%);
  filter: grayscale(75%);
  box-shadow: 4px 10px 20px rgba(0,0,0,0.15), 0 6px 6px rgba(0,0,0,0.20);
  z-index: 1;
}

.thumb-title {
  position: absolute;
  bottom: 0;
  padding: .5em 1em;
  color: #ffffff;
  font-size: .8em;
  letter-spacing: .1em;
}

/* Footer */
footer {
  text-align: center;
}

.append-button {
  text-decoration: none;
  max-width: 100%;
  margin: 10px;
  padding: 12px 42px;
  cursor: pointer;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
  -webkit-transition: all 60ms ease-in-out;
  transition: all 60ms ease-in-out;
  text-align: center;
  text-decoration: none !important;
  text-transform: none;
  text-transform: capitalize;
  color: #fff;
  border: 0 none;
  border-radius: 4px;
  font-size: 14px;
  font-weight: 500;
  line-height: 1.3;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  outline: none;
  color: #202129;
  background: #edeeee;
  opacity: 0;
  animation-name: button-show;
  animation-duration: 0.6s;
  animation-iteration-count: 1;
  animation-direction: alternate;
  animation-timing-function: linear;
  animation-fill-mode: forwards;
  animation-delay: 3s;
}

@keyframes button-show {
  0%  {
    opacity: 0;
  }
  100%  {
    opacity: 1
  }
}

.append-button:hover {
  -webkit-transition: all 60ms ease;
  transition: all 60ms ease;
  opacity: .85;
}

.append-button:hover {
  color: #202129;
  background-color: #e1e2e2;
  opacity: 1;
}

.status {
  display: none;
}

/* Lightbox */
.sandbox {
  display: none;
  position: fixed;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  background: #000000;
  z-index: 100;
}

.lightbox {
  position: fixed;
  width: 94%;
  height: 94%;
  top: 50%;
  left: 50%;
  -webkit-transform: translate(-50%, -50%);
  -ms-transform: translate(-50%, -50%);
  -o-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
  background: black;
  background-size: contain;
  cursor: crosshair
}

/*
===============================================================

Hi! Welcome to my little playground!

My name is Tobias Bogliolo. 'Open source' by default and always 'responsive',
I'm a publicist, visual designer and frontend developer based in Barcelona. 

Here you will find some of my personal experiments. Sometimes usefull,
sometimes simply for fun. You are free to use them for whatever you want 
but I would appreciate an attribution from my work. I hope you enjoy it.

===============================================================
*/
//=====================
//=====================
//JSON Data:
//=====================
//=====================
var picsData = [
  {
    id: '1',
    title: 'Windows',
    description: 'Windows',
    alt: 'Windows',
    thumbName: '2-%20Arquitectura%2011_o.jpg',
    imgName: "2-%20Arquitectura%2011_o.jpg",
    classes: 'item item-mid',
    tags: ['photo', 'color', 'pattern', 'light']
  },
  {
    id: '2',
    title: 'Over the Clouds',
    description: 'Over the Clouds',
    alt: 'Over the Clouds',
    thumbName: '1%20-%20Landscape%201.jpg',
    imgName: "1%20-%20Landscape%201_o.jpg",
    classes: 'item',
    tags: ['photo', 'color', 'pattern', 'light']
  },
  {
    id: '3',
    title: 'Paralyzed',
    description: 'Paralyzed',
    alt: 'Paralyzed',
    thumbName: '2012-8-3---Maria-y-Martina-en-Barcelon54a-8_out.jpg',
    imgName: "2012-8-3---Maria-y-Martina-en-Barcelon54a-8_out_o.jpg",
    classes: 'item',
    tags: ['photo', 'color', 'pattern', 'light']
  },
  {
    id: '4',
    title: 'The Guard',
    description: 'The Guard',
    alt: 'The Guard',
    thumbName: '4%20-%20Restratos%204_o.jpg', 
    imgName: "4%20-%20Restratos%204_o.jpg",
    classes: 'item item-mid',
    tags: ['photo', 'color', 'pattern', 'light']
  },
  {
    id: '5',
    title: 'Human Being',
    description: 'Human Being',
    alt: 'Human Being',
    thumbName: '2012-10-29---Perrssssssssssssssssssssssssssssos_out_o.jpg', 
    imgName: "2012-10-29---Perrssssssssssssssssssssssssssssos_out_o.jpg",
    classes: 'item item-mid',
    tags: ['photo', 'color', 'pattern', 'light']
  },
  {
    id: '6',
    title: 'Fire',
    description: 'Fire',
    alt: 'Fire',
    thumbName: 'ver-la-luz-24.jpg', 
    imgName: "ver-la-luz-24_o.jpg",
    classes: 'item',
    tags: ['photo', 'color', 'pattern', 'light']
  },
  {
    id: '7',
    title: 'Beyond the crowd',
    description: 'Beyond the crowd',
    alt: 'Beyond the crowd',
    thumbName: '5%20-%20Personas%207.jpg', 
    imgName: "5%20-%20Personas%207_o.jpg",
    classes: 'item',
    tags: ['photo', 'color', 'pattern', 'light']
  },
  {
    id: '8',
    title: 'Jamaa el Fna',
    description: 'Jamaa el Fna',
    alt: 'Jamaa el Fna',
    thumbName: '2009-7-21---Marrakech-2_o.jpg', 
    imgName: "2009-7-21---Marrakech-2_o.jpg",
    classes: 'item item-mid',
    tags: ['photo', 'color', 'pattern', 'light']
  },
  {
    id: '9',
    title: 'Two Lovers',
    description: 'Two Lovers',
    alt: 'Two Lovers',
    thumbName: '5%20-%20Personas%2011.jpg', 
    imgName: "5%20-%20Personas%2011_o.jpg",
    classes: 'item',
    tags: ['photo', 'color', 'pattern', 'light']
  },
  {
    id: '10',
    title: 'Fringe',
    description: 'Fringe',
    alt: 'Fringe',
    thumbName: '2-%20Arquitectura%201_o.jpg', 
    imgName: "2-%20Arquitectura%201_o.jpg",
    classes: 'item item-big',
    tags: ['photo', 'color', 'pattern', 'light']
  },
  {
    id: '11',
    title: 'Heads Elsewhere',
    description: 'Heads Elsewhere',
    alt: 'Heads Elsewhere',
    thumbName: '2-%20Arquitectura%2013_o.jpg', 
    imgName: "2-%20Arquitectura%2013_o.jpg",
    classes: 'item item-mid',
    tags: ['photo', 'color', 'pattern', 'light']
  },
  {
    id: '12',
    title: 'Giraffes',
    description: 'Giraffes',
    alt: 'Giraffes',
    thumbName: '1%20-%20Landscape%208.jpg', 
    imgName: "1%20-%20Landscape%208_o.jpg",
    classes: 'item',
    tags: ['photo', 'color', 'pattern', 'light']
  },
  {
    id: '13',
    title: 'Alphabet',
    description: 'Alphabet',
    alt: 'Alphabet',
    thumbName: '2012-8-17---ABbfgfgC-3_out.jpg', 
    imgName: "2012-8-17---ABbfgfgC-3_out.jpg",
    classes: 'item',
    tags: ['photo', 'color', 'pattern', 'light']
  },
  {
    id: '14',
    title: 'Mirrors',
    description: 'Mirrors',
    alt: 'Mirrors',
    thumbName: '2-%20Arquitectura%206.jpg', 
    imgName: "2-%20Arquitectura%206_o.jpg",
    classes: 'item',
    tags: ['photo', 'color', 'pattern', 'light']
  },
  {
    id: '15',
    title: 'Columns',
    description: 'Columns',
    alt: 'Columns',
    thumbName: '3%20-%20Interiores%201_o.jpg', 
    imgName: "3%20-%20Interiores%201_o.jpg",
    classes: 'item item-mid',
    tags: ['photo', 'color', 'pattern', 'light']
  },
  {
    id: '16',
    title: 'Advanced Gardening',
    description: 'Advanced Gardening',
    alt: 'Advanced Gardening',
    thumbName: '2011-9-12---Jardinero-2.jpg', 
    imgName: "2011-9-12---Jardinero-2_o.jpg",
    classes: 'item',
    tags: ['photo', 'color', 'pattern', 'light']
  },
  {
    id: '17',
    title: 'Grid',
    description: 'Grid',
    alt: 'Grid',
    thumbName: '2-%20Arquitectura%209.jpg', 
    imgName: "2-%20Arquitectura%209_o.jpg",
    classes: 'item',
    tags: ['photo', 'color', 'pattern', 'light']
  },
  {
    id: '18',
    title: 'Stone',
    description: 'Stone',
    alt: 'Stone',
    thumbName: 'Escultura%20-%202008-08-16-14_out_o.jpg', 
    imgName: "Escultura%20-%202008-08-16-14_out_o.jpg",
    classes: 'item item-mid',
    tags: ['photo', 'color', 'pattern', 'light']
  },
  {
    id: '19',
    title: 'Light',
    description: 'Light',
    alt: 'Light',
    thumbName: '3%20-%20Interiores%208.jpg', 
    imgName: "3%20-%20Interiores%208_o.jpg",
    classes: 'item',
    tags: ['photo', 'color', 'pattern', 'light']
  },
  {
    id: '20',
    title: 'Scrabble',
    description: 'Scrabble',
    alt: 'Scrabble',
    thumbName: '2011-9-11---Tacheles-Scrabble---HUMANITY.jpg', 
    imgName: "2011-9-11---Tacheles-Scrabble---HUMANITY_o.jpg",
    classes: 'item',
    tags: ['photo', 'color', 'pattern', 'light']
  },
  {
    id: '21',
    title: 'X',
    description: 'X',
    alt: 'X',
    thumbName: 'IMG_0874_out_o.jpg', 
    imgName: "IMG_0874_out_o.jpg",
    classes: 'item item-mid',
    tags: ['photo', 'color', 'pattern', 'light']
  },
  {
    id: '22',
    title: 'Breathe',
    description: 'Breathe',
    alt: 'Breathe',
    thumbName: 'Escultura%20-%20IMG_1067_out.jpg', 
    imgName: "Escultura%20-%20IMG_1067_out_o.jpg",
    classes: 'item',
    tags: ['photo', 'color', 'pattern', 'light']
  }
];


//=====================
//=====================
//Script:
//=====================
//=====================
//Global vars:
var imgSrc = "http://payload100.cargocollective.com/1/9/296422/4317770/"; //Root directory.
var imgName;
var dataLength = picsData.length;
var loopLength = 3; //Set loop length.
var initItemsLength = 9; //set initial items length.
var itemDelay = 300; //Set delay between appended items.

//Create elements:
function getItem(param) {
  //Find data:
  var imgName = picsData[param].thumbName;
  //Create image:
  var image = new Image();
  image.className = 'img-item';
  image.src = imgSrc + imgName;
  //Create title:
  var title = document.createElement('span');
  title.className = "thumb-title";
  titleText = document.createTextNode(picsData[param].title);
  title.appendChild(titleText);
  //Create container:
  var item = document.createElement('div');
  item.className = picsData[param].classes;
  item.appendChild(title);
  item.appendChild(image);
  return item;
}

//Append initial items:
function appendItemInit(){
  for (i=0; i<initItemsLength; i++) {
    (function(i){
      setTimeout(function(){
        if (initItemsLength<dataLength) {
          //Get item:
          var elems = getItem(i);
          //Create jQuery object:
          var $elems = $(elems);
          //Append item:
          $(".grid").append($elems);
          // console.log(picsData[i].id);
        }
        else {
          $('.append-button').hide();
          $(".status").fadeIn();
        };
      }, itemDelay * i);
    }(i)); //Add delay between appended items.
  };
};
appendItemInit();

//Append new items:
function appendItem(){
  for (i=0; i<loopLength; i++) {
    (function(i){
      setTimeout(function(){
        if (initItemsLength<dataLength) {
          //Get item:
          var elems = getItem(initItemsLength);
          //Create jQuery object:
          var $elems = $(elems);
          //Append item:
          $(".grid").append($elems);
          // console.log(picsData[initItemsLength].id);
          //Modify items counter:
          initItemsLength += 1;
        }
        else {
          $('.append-button').hide();
          $(".status").fadeIn();
        };
      }, itemDelay * i);
    }(i)); //Add delay between appended items.
  };
};
$('.append-button').click(function() {
  appendItem();
});

//Infinite Scroll (trigger):
$(window).scroll(function() {
  if(Math.ceil($(window).scrollTop() + window.innerHeight) == $(document).height()) {
    appendItem();
  }
});

//Lightbox:
//Binding DOM after newly appended elements.
$(document).on('click', '.item', function() {
  //Find item into JSON:
  var thisItem = $(this).find(".img-item").attr("src");
  var n = thisItem.lastIndexOf('/');
  var result = thisItem.substring(n + 1);
  var index = picsData.map(function(e) { return e.thumbName; }).indexOf(result);
  console.log(index);
  //Lightbox display (fade in):
  $(".lightbox").css({
    "background": "url("+imgSrc+picsData[index].imgName+") no-repeat center",
    "background-size": "contain"
  });
  $(".sandbox").fadeIn(100);
  //Hide scrollbar
  $("html").css({"overflow-y": "hidden"});
});
//Lightbox display (fade out):
$(".sandbox").click(function(){
  $(".sandbox").fadeOut(100);
  //Show scrollbar:
  $("html").css({"overflow-y": "auto"});
});

This Pen is owned by Tobias Bogliolo on CodePen.

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External JavaScript

https://cdnjs.cloudflare.com/ajax/libs/jquery/3.1.1/jquery.min.js