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HTML

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HTML preprocessors can make writing HTML more powerful or convenient. For instance, Markdown is designed to be easier to write and read for text documents and you could write a loop in Pug.

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Adding Classes

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About the <head>

In CodePen, whatever you write in the HTML editor is what goes within the <body> tags in a basic HTML5 template. If you need things in the <head> of the document, put that code here.

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Insecure Resource

The resource you are linking to is using the 'http' protocol, which may not work when the browser is using https.

CSS

About CSS Preprocessors

CSS preprocessors help make authoring CSS easier. All of them offer things like variables and mixins to provide convenient abstractions.

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CSS Base

About CSS Base

It's a common practice to apply CSS to a page that styles elements such that they are consistent across all browsers. We offer two of the most popular choices: normalize.css and a reset. Or, choose Neither and nothing will be applied.

Vendor Prefixing

About Vendor Prefixing

To get the best cross-browser support, it is a common practice to apply vendor prefixes to CSS properties and values that require them to work. For instance -webkit- or -moz-.

We offer two popular choices: Autoprefixer (which processes your CSS server-side) and -prefix-free (which applies prefixes via a script, client-side).

Add External Stylesheets/Pens

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JavaScript

About JavaScript Preprocessors

JavaScript preprocessors can help make authoring JavaScript easier and more convenient.

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Babel includes JSX processing.

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If the script you link to has the file extension of a preprocessor, we'll attempt to process it before applying.

You can also link to another Pen here, and we'll pull the JavaScript from that Pen and include it. If it's using a matching preprocessor, we'll combine the code before preprocessing, so you can use the linked Pen as a true dependency.

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Packages

Add Packages

Search for and use JavaScript packages from npm here. By selecting a package, an import statement will be added to the top of the JavaScript editor for this package.

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Using packages here is powered by Skypack, which makes packages from npm not only available on a CDN, but prepares them for native JavaScript ES6 import usage.

All packages are different, so refer to their docs for how they work.

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HTML 

              
                <ul class="list-cat iz-tags-list filter-button-group">
  <li data-filter="*" class="active">All</li>
  <li data-filter=".web">Web</li>
  <li data-filter=".applications">Applications</li>
  <li data-filter=".motion">Motion</li>
  <li data-filter=".tilda">Tilda</li>
  <li data-filter=".graphic-design">Graphic&nbsp;Design</li>
</ul>

<ul class="list-portfolio grid">
  <li class="p-item web">
    <span class="p-content">
      <span class="p-cat">Web</span>
      <span class="p-title">Title 1</span>
    </span>
  </li>
  <li class="p-item applications">
    <span class="p-content">
      <span class="p-cat">Applications</span>
      <span class="p-title">Title 2</span>
    </span>
  </li>
  <li class="p-item motion">
    <span class="p-content">
      <span class="p-cat">Motion</span>
      <span class="p-title">Title 3</span>
    </span>
  </li>
  <li class="p-item tilda">
    <span class="p-content">
      <span class="p-cat">Tilda</span>
      <span class="p-title">Title 4</span>
    </span>
  </li>
  <li class="p-item web">
    <span class="p-content">
      <span class="p-cat">Web</span>
      <span class="p-title">Title 5</span>
    </span>
  </li>
  <li class="p-item tilda">
    <span class="p-content">
      <span class="p-cat">Tilda</span>
      <span class="p-title">Title 6</span>
    </span>
  </li>
  <li class="p-item web">
    <span class="p-content">
      <span class="p-cat">Web</span>
      <span class="p-title">Title 7</span>
    </span>
  </li>
  <li class="p-item applications">
    <span class="p-content">
      <span class="p-cat">Applications</span>
      <span class="p-title">Title 8</span>
    </span>
  </li>
  <li class="p-item motion">
    <span class="p-content">
      <span class="p-cat">Motion</span>
      <span class="p-title">Title 9</span>
    </span>
  </li>
  <li class="p-item applications">
    <span class="p-content">
      <span class="p-cat">Applications</span>
      <span class="p-title">Title 10</span>
    </span>
  </li>
  <li class="p-item web">
    <span class="p-content">
      <span class="p-cat">Web</span>
      <span class="p-title">Title 11</span>
    </span>
  </li>
  <li class="p-item applications">
    <span class="p-content">
      <span class="p-cat">Applications</span>
      <span class="p-title">Title 12</span>
    </span>
  </li>
  <li class="p-item graphic-design">
    <span class="p-content">
      <span class="p-cat">Graphic&nbsp;Design</span>
      <span class="p-title">Title 13</span>
    </span>
  </li>
  <li class="p-item motion">
    <span class="p-content">
      <span class="p-cat">Motion</span>
      <span class="p-title">Title 14</span>
    </span>
  </li>
  <li class="p-item tilda">
    <span class="p-content">
      <span class="p-cat">Tilda</span>
      <span class="p-title">Title 15</span>
    </span>
  </li>
  <li class="p-item web">
    <span class="p-content">
      <span class="p-cat">Web</span>
      <span class="p-title">Title 16</span>
    </span>
  </li>
  <li class="p-item web">
    <span class="p-content">
      <span class="p-cat">Web</span>
      <span class="p-title">Title 17</span>
    </span>
  </li>
  <li class="p-item graphic-design">
    <span class="p-content">
      <span class="p-cat">Graphic&nbsp;Design</span>
      <span class="p-title">Title 18</span>
    </span>
  </li>
  <li class="p-item motion">
    <span class="p-content">
      <span class="p-cat">Motion</span>
      <span class="p-title">Title 19</span>
    </span>
  </li>
  <li class="p-item graphic-design">
    <span class="p-content">
      <span class="p-cat">Graphic&nbsp;Design</span>
      <span class="p-title">Title 20</span>
    </span>
  </li>
</ul>
!

CSS 

              
                .list-cat {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  flex-wrap: wrap;
  margin-bottom: 20px;
  margin-top: 20px;
}
.list-cat li {
  margin: 5px;
  padding: 10px 20px;
  background: blue;
  color: #fff;
  font-weight: bold;
  cursor: pointer;
}
.list-portfolio {
  display: flex;
  align-items: flex-start;
  justify-content: flex-start;
  flex-wrap: wrap;
  width: 900px;
  max-width: 100%;
}
.list-portfolio li {
  display: flex;
  width: 100px;
  height: 100px;
  align-items: center;
  justify-content: center;
  background: red;
  color: #fff;
  margin: 4px;
}
.p-cat {
  position: absolute;
  left: 5px;
  top: 5px;
  font-size: 12px;
}
!

JS 

              
                (function ($) {
  $(window).on("load", function () {
    function getHashFilter() {
      // get filter=filterName
      var matches = location.hash.match(/filter=([^&]+)/i);
      var hashFilter = matches && matches[1];
      return hashFilter && decodeURIComponent(hashFilter);
    }

    // init Isotope
    var $grid = $(".grid");
    // bind filter button click
    var $filterButtonGroup = $(".list-cat");

    // filter items on button click
    $(".list-cat").on("click", "li", function () {
      var filterValue = $(this).attr("data-filter");
      $grid.isotope({ filter: filterValue });
      // set filter in hash
      location.hash = "filter=" + encodeURIComponent(filterValue);
      // check active item tag
      $(this).addClass("active").siblings().removeClass("active");
    });

    var isIsotopeInit = false;

    function onHashchange() {
      var hashFilter = getHashFilter();
      if (!hashFilter && isIsotopeInit) {
        return;
      }
      isIsotopeInit = true;

      // filter isotope
      $grid.isotope({
        itemSelector: ".p-item",
        layoutMode: "fitRows",
        fitRows: {
          gutter: 2
        },

        // use filterFns
        filter: hashFilter
      });

      // set selected class on button
      if (hashFilter) {
        $filterButtonGroup.find(".active").removeClass("active");
        $filterButtonGroup
          .find('[data-filter="' + hashFilter + '"]')
          .addClass("active");
      }
    }

    $(window).on("hashchange", onHashchange);

    // trigger event handler to init Isotope
    onHashchange();
  });
})(jQuery);
!
999px

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