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CSS

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JavaScript

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HTML 

              
                header.push-down
  h1 Wikipedia Viewer

.random: a(href="http://en.wikipedia.org/wiki/Special:Random") Random Article

.search
  .handle
  form
    input
      
.results

script#results-template(type="text/x-handlebars-template")
  | {{#each results}}
  a(href="{{canonicalurl}}")
    .result
      .title {{title}}
      .extract {{{extract}}}
  | {{/each}}
!

CSS 

              
                @import url(https://fonts.googleapis.com/css?family=Roboto)

$text-color: #ddd
$bg-color: #345

body
  font-family: 'Roboto', sans-serif
  text-align: center
  background-color: $bg-color
  color: $text-color

a
  color: #aaf

header
  transition: margin 0.4s

.push-down
  margin-top: 5em

.random, .search, .results
  margin: 2em

.result
  margin: 1em
  padding: 0.5em
  .title
    margin-bottom: 0.5em

.random
  a
    text-decoration: none

.search
  position: relative
  label
    display: block
  input
    position: relative
    z-index: 1
    background-color: mix(white, $bg-color, 20%)
    color: $text-color
    font-size: 1.2em
    width: 1.4em
    height: 1.4em
    padding: 1em
    border-radius: 2em
    border: 3px solid $text-color
    transition: width 0.4s

.search .handle
  position: absolute
  bottom: 0
  left: 50%
  width: 3em
  height: 0
  border: 3px solid $text-color
  transform: rotate(45deg)
  transition: all 0.4s

.result
  text-align: left
  background-color: white
  color: #333
  border-left:
    color: $bg-color
    style: solid
    width: 3px
  .title
    font-size: 1.5em

.results a
  text-decoration: none
  .result:hover
    border-left:
      color: orange
      style: solid
      width: 3px
!

JS 

              
                var results_template = Handlebars.compile($('#results-template').html());

$('.search form').submit(function(event) {
  event.preventDefault();
  var search_query = $('.search input').val();
  $.ajax('https://en.wikipedia.org/w/api.php', {
    dataType: 'jsonp',
    success: function(data) {
      $('.results').hide();
      $('.results').html(results_template({results: data.query.pages}));
      $('header').removeClass('push-down');
      $('.results').fadeIn();
    },
    data: {
      action: 'query',
      generator: 'search',
      gsrsearch: search_query,
      gsrlimit: 10,
      prop: 'info|extracts',
      inprop: 'url',
      exintro: true,
      exlimit: 10,
      format: 'json',
      utf8: ''
    }
  });
});

$('.search input').focus(function() {
  $(this).css('width', '20em');
  $('.search .handle').css({width: 0, opacity: 0});
});

$('.search input').blur(function() {
  if ($(this).val().length === 0) {
    $(this).css('width', '');
    $('.search .handle').css({width: '', opacity: ''});
  }
});
!
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