My Wikipedia Viewer

index.pug

main(ng-app='WikiApp' ng-controller='MainCtrl')
  #search.wrapper.fullHeight
    a.white-text(href='https://en.wikipedia.org/wiki/Special:Random' target='_blank') Click here for a random article
    br
    form(ng-submit='search()')
      input(type='text' ng-model='searchTxt')
      .eks
    p.white-text#help Click icon to search
  .wrapper
    ul
      a(ng-href='{{result.page}}' target='_blank' ng-repeat='result in results')
        li
          h1 {{result.title}}
          p {{result.body}}

my-wikipedia-viewer.markdown

My Wikipedia Viewer

Search wikipedia by clicking on the search icon, providing your search and press return.

Forked from Geoff Storbeck's Pen Wikipedia Search.

Forked from Free Code Camp's Pen Wikipedia Search.

A Pen by Bakaki Mahlon on CodePen.

License.

script.js

var app = angular.module('WikiApp', ['ngAnimate']);
app.controller('MainCtrl', function($scope, $http, $timeout) {
  var form = $('form');
  var close = $('.eks');
  var input = $('input');
  var search = $("#search");
  var help = $("#help");
  
  $scope.results = [];

  close.on('click', function() {
    form.toggleClass('open');
    
    if (!form.hasClass('open') && $scope.searchTxt !== '' && typeof $scope.searchTxt !== 'undefined') {
	    search.toggleClass('fullHeight')
      help.toggleClass('hide');
      $scope.searchTxt = '';
    } 
    $scope.results = [];
    $scope.$apply();
  })

  input.on('transitionend webkitTransitionEnd oTransitionEnd', function() {
    if (form.hasClass('open')) {
      input.focus();
    } else {
      return;
    }
  })

  $scope.search = function() {
    $scope.results = [];
    help.addClass('hide');
    search.removeClass('fullHeight');
    var title = input.val();
    var api = 'https://en.wikipedia.org/w/api.php?format=json&action=query&generator=search&gsrnamespace=0&gsrlimit=10&prop=pageimages|extracts&pilimit=max&exintro&explaintext&exsentences=1&exlimit=max&gsrsearch=';
    var cb = '&callback=JSON_CALLBACK';
    var page = 'https://en.wikipedia.org/?curid=';
    
    $http.jsonp(api + title + cb)
    .success(function(data) {
      var results = data.query.pages;
      angular.forEach(results, function(v,k)  {
        $scope.results.push({title: v.title, body: v.extract, page: page + v.pageid})
      })
    });
  }
});

scripts

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.3.2/angular.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.3.2/angular-animate.min.js"></script>

style.scss

@import "bourbon";

@import url(https://fonts.googleapis.com/css?family=Rokkitt:700);

// Colors
$blue: #092B40;
$lightBlue: #85DEF2;
$water: #52A5D9;
$sky: #5BB5D9;
$orange: #D96F32;

* { 
  box-sizing: border-box;
}

html, body, main {
  font-family: "Lucida Grande","Lucida Sans Unicode", Tahoma, Sans-Serif;

  position: relatiave;
  margin: 0; padding: 0;
  padding-top: 10px;
  width: 100%; height: 100%;
  background-color: $blue;
}

input[type='text'] {
  -webkit-appearance: none;
  outline: none;
  border: none;
}

.wrapper {
  display: flex;
  width: 100%;
  @include display(flex);
	@include flex-direction(column);
	@include align-items(center);
	@include justify-content(center);
  @include transition(all 2s linear);
}

.fullHeight { 
  height: 100%; 
  @include transition-duration(2s);
}

.white-text {
  color: white;
  text-decoration: none;
}

form {
  position: relative;
  display: block;
  z-index: 1;
  width: 40px;
  height: 40px;
  margin-left: 0;
  padding: 0;
  margin-bottom: 10px;
  border: 4px solid $orange;
  border-radius: 20px;
  
  @include transition(all .25s ease .3s);
  cursor: pointer;
  &:before {
    @extend %def;
    top: 90%;
    left: 90%;
    width: 16px;
    height: 3px;
    background-color: $orange;
    border-radius: 1px;
    @include transition(width .15s ease .55s);
    @include transform(rotate(45deg));
    @include transform-origin(top left);
  }
  input {
    width: 100%;
    height: 100%;
    padding: 0 30px 0 15px;
    font-size: 14px;
    line-height: 38px;
    opacity: 0;
    background-color: transparent;
    color: white;
    @include transition(opacity .15s ease);
  }
}

.eks {
	display: block;
	position: absolute;
	top: 50%;
	right: 0;
	z-index: 20;
	width: 30px;
	height: 30px;
	cursor: pointer;	
	@include transform(translateY(-50%));
	&:before, &:after {
		@extend %def;
		right: 5px;
		height: 2px;
		width: 2px;
		border-radius: 1px;
		@include transition(all .25s ease);
	}
	&:before {
		top: 0px;
		background-color: $orange;
		@include transform(rotate(-45deg));
		@include transform-origin(top right);
		@include transition-delay(.1s);
	}
	&:after {
		bottom: 0px;
		background-color: $orange;
		@include transform(rotate(45deg));
		@include transform-origin(bottom right);
		@include transition-delay(0s);
	}
}

form.open {
  width: 260px;
  @include transition-delay(.1s);
  &:before {
    width: 0px;
    @include transition-delay(0s);
  }
  input {
    opacity: 1;
    @include transition-delay(.15s);
  }
  .eks {
    &:before, &:after {
      width: 15px;
      right: 12px;
    }
    &:before {
      top: 9px;
      @include transition-delay(.25s);
    }
    &:after {
      bottom: 9px;
      @include transition-delay(.3s);
    }
  }
}

ul {
  margin-left: 0; padding-left: 0;
  width: 80%;
  
  a {
    text-decoration: none;
    color: black;
    
    h1 {
      font-size: 18px;
    }
    p {
      font-size: 14px;
    }
  }
  li {
    list-style-type: none;
    display: block;
    margin-bottom: 10px;
    padding: 15px 30px 5px 30px;
    background-color: #E7E7E8;
    opacity: 0;
    @include animation(new-item 1s ease-in-out forwards);
    @include transition-timing-function(cubic-bezier(0.6, 0, 0.4, 1.0));

    &:hover {
      border-left: 5px solid $orange;
      margin-left: -5px;
      //box-shadow: inset 2px -2px 0 $orange;
    }
  }
}

.hide {
  display: none;
}

%def {
  content: '';
  position: absolute;
  display: block;
}

@include keyframes(new-item) {
  0% { opacity: 0; 
    -webkit-transform: translateY(2000px); }
  80% { opacity: 0; }
  100% { opacity: 1;
    -webkit-transform: translateY(0); }
}

If you want to see an example of a simple mark down previewer code then you're welcome