Pen Settings

HTML

CSS

CSS Base

Vendor Prefixing

Add External Stylesheets/Pens

Any URL's added here will be added as <link>s in order, and before the CSS in the editor. You can use the CSS from another Pen by using it's URL and the proper URL extention.

+ add another resource

JavaScript

Babel includes JSX processing.

Add External Scripts/Pens

Any URL's added here will be added as <script>s in order, and run before the JavaScript in the editor. You can use the URL of any other Pen and it will include the JavaScript from that Pen.

+ add another resource

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.

Behavior

Save Automatically?

If active, Pens will autosave every 30 seconds after being saved once.

Auto-Updating Preview

If enabled, the preview panel updates automatically as you code. If disabled, use the "Run" button to update.

Format on Save

If enabled, your code will be formatted when you actively save your Pen. Note: your code becomes un-folded during formatting.

Editor Settings

Code Indentation

Want to change your Syntax Highlighting theme, Fonts and more?

Visit your global Editor Settings.

HTML

              
                h1 Quicksearch

- const country_list = ['Afghanistan', 'Albania', 'Algeria', 'Andorra', 'Angola', 'Anguilla', 'Antigua &amp; Barbuda', 'Argentina', 'Armenia', 'Aruba', 'Australia', 'Austria', 'Azerbaijan', 'Bahamas', 'Bahrain', 'Bangladesh', 'Barbados', 'Belarus', 'Belgium', 'Belize', 'Benin', 'Bermuda', 'Bhutan', 'Bolivia', 'Bosnia &amp; Herzegovina', 'Botswana', 'Brazil', 'British Virgin Islands', 'Brunei', 'Bulgaria', 'Burkina Faso', 'Burundi', 'Cambodia', 'Cameroon', 'Cape Verde', 'Cayman Islands', 'Chad', 'Chile', 'China', 'Colombia', 'Congo', 'Cook Islands', 'Costa Rica', 'Cote D Ivoire', 'Croatia', 'Cruise Ship', 'Cuba', 'Cyprus', 'Czech Republic', 'Denmark', 'Djibouti', 'Dominica', 'Dominican Republic', 'Ecuador', 'Egypt', 'El Salvador', 'Equatorial Guinea', 'Estonia', 'Ethiopia', 'Falkland Islands', 'Faroe Islands', 'Fiji', 'Finland', 'France', 'French Polynesia', 'French West Indies', 'Gabon', 'Gambia', 'Georgia', 'Germany', 'Ghana', 'Gibraltar', 'Greece', 'Greenland', 'Grenada', 'Guam', 'Guatemala', 'Guernsey', 'Guinea', 'Guinea Bissau', 'Guyana', 'Haiti', 'Honduras', 'Hong Kong', 'Hungary', 'Iceland', 'India', 'Indonesia', 'Iran', 'Iraq', 'Ireland', 'Isle of Man', 'Israel', 'Italy', 'Jamaica', 'Japan', 'Jersey', 'Jordan', 'Kazakhstan', 'Kenya', 'Kuwait', 'Kyrgyz Republic', 'Laos', 'Latvia', 'Lebanon', 'Lesotho', 'Liberia', 'Libya', 'Liechtenstein', 'Lithuania', 'Luxembourg', 'Macau', 'Macedonia', 'Madagascar', 'Malawi', 'Malaysia', 'Maldives', 'Mali', 'Malta', 'Mauritania', 'Mauritius', 'Mexico', 'Moldova', 'Monaco', 'Mongolia', 'Montenegro', 'Montserrat', 'Morocco', 'Mozambique', 'Namibia', 'Nepal', 'Netherlands', 'Netherlands Antilles', 'New Caledonia', 'New Zealand', 'Nicaragua', 'Niger', 'Nigeria', 'Norway', 'Oman', 'Pakistan', 'Palestine', 'Panama', 'Papua New Guinea', 'Paraguay', 'Peru', 'Philippines', 'Poland', 'Portugal', 'Puerto Rico', 'Qatar', 'Reunion', 'Romania', 'Russia', 'Rwanda', 'Saint Pierre &amp; Miquelon', 'Samoa', 'San Marino', 'Satellite', 'Saudi Arabia', 'Senegal', 'Serbia', 'Seychelles', 'Sierra Leone', 'Singapore', 'Slovakia', 'Slovenia', 'South Africa', 'South Korea', 'Spain', 'Sri Lanka', 'St Kitts &amp; Nevis', 'St Lucia', 'St Vincent', 'St. Lucia', 'Sudan', 'Suriname', 'Swaziland', 'Sweden', 'Switzerland', 'Syria', 'Taiwan', 'Tajikistan', 'Tanzania', 'Thailand', "Timor L'Este", 'Togo', 'Tonga', 'Trinidad &amp; Tobago', 'Tunisia', 'Turkey', 'Turkmenistan', 'Turks &amp; Caicos', 'Uganda', 'Ukraine', 'United Arab Emirates', 'United Kingdom', 'Uruguay', 'Uzbekistan', 'Venezuela', 'Vietnam', 'Virgin Islands (US)', 'Yemen', 'Zambia', 'Zimbabwe'];

input#filter-input(placeholder="Type in here to filter results", type="search")

ol#filter-results
  - for (var x = 1; x < country_list.length; x++)
    li= country_list[x]

              
            
!

CSS

              
                body {
  font-family: system-ui, sans-serif;
  padding: 20px;
}

              
            
!

JS

              
                $.expr[":"].CIcontains = $.expr.createPseudo(function (arg) {
  return function (elem) {
    return $(elem).text().toUpperCase().indexOf(arg.toUpperCase()) >= 0;
  };
});

// Every time a key is clicked
$("#filter-input").keyup(function () {
  // get the text from the box
  var curr_text = $(this).val();
  // pass it to the function
  filterResults(curr_text);
});

$("#close").click(function () {
  var curr_text = $(this).val();
  $("#filter-input").val("");
  filterResults(curr_text);
});

function filterResults(curr_text) {
  // hide all results
  $("#filter-results li").hide();
  // ... except those which are selected
  $("#filter-results li:CIcontains('" + curr_text + "')").show();
}

              
            
!
999px

Console