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HTML 

              
                	<main class="cd-main-content">
		<h1>Slide In Panel</h1>
		<a href="#0" class="cd-btn">Fire Panel</a>
		<!-- your content here -->
	</main>

	<div class="cd-panel from-right">
		<header class="cd-panel-header">
			<h1>Title Goes Here</h1>
			<a href="#0" class="cd-panel-close">Close</a>
		</header>

		<div class="cd-panel-container">
			<div class="cd-panel-content">
				<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Quam magnam accusamus obcaecati nisi eveniet quo veniam quibusdam veritatis autem accusantium doloribus nam mollitia maxime explicabo nemo quae aspernatur impedit cupiditate dicta molestias consectetur, sint reprehenderit maiores. Tempora, exercitationem, voluptate. Sapiente modi officiis nulla sed ullam, amet placeat, illum necessitatibus, eveniet dolorum et maiores earum tempora, quas iste perspiciatis quibusdam vero accusamus veritatis. Recusandae sunt, repellat incidunt impedit tempore iusto, nostrum eaque necessitatibus sint eos omnis! Beatae, itaque, in. Vel reiciendis consequatur saepe soluta itaque aliquam praesentium, neque tempora. Voluptatibus sit, totam rerum quo ex nemo pariatur tempora voluptatem est repudiandae iusto, architecto perferendis sequi, asperiores dolores doloremque odit. Libero, ipsum fuga repellat quae numquam cumque nobis ipsa voluptates pariatur, a rerum aspernatur aliquid maxime magnam vero dolorum omnis neque fugit laboriosam eveniet veniam explicabo, similique reprehenderit at. Iusto totam vitae blanditiis. Culpa, earum modi rerum velit voluptatum voluptatibus debitis, architecto aperiam vero tempora ratione sint ullam voluptas non! Odit sequi ipsa, voluptatem ratione illo ullam quaerat qui, vel dolorum eligendi similique inventore quisquam perferendis reprehenderit quos officia! Maxime aliquam, soluta reiciendis beatae quisquam. Alias porro facilis obcaecati et id, corporis accusamus? Ab porro fuga consequatur quisquam illo quae quas tenetur.</p>

				<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Neque similique, at excepturi adipisci repellat ut veritatis officia, saepe nemo soluta modi ducimus velit quam minus quis reiciendis culpa ullam quibusdam eveniet. Dolorum alias ducimus, ad, vitae delectus eligendi, possimus magni ipsam repudiandae iusto placeat repellat omnis veritatis adipisci aliquam hic ullam facere voluptatibus ratione laudantium perferendis quos ut. Beatae expedita, itaque assumenda libero voluptatem adipisci maiores voluptas accusantium, blanditiis saepe culpa laborum iusto maxime quae aperiam fugiat odit consequatur soluta hic. Sed quasi beatae quia repellendus, adipisci facilis ipsa vel, aperiam, consequatur eaque mollitia quaerat. Iusto fugit inventore eveniet velit.</p>

				<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Neque similique, at excepturi adipisci repellat ut veritatis officia, saepe nemo soluta modi ducimus velit quam minus quis reiciendis culpa ullam quibusdam eveniet. Dolorum alias ducimus, ad, vitae delectus eligendi, possimus magni ipsam repudiandae iusto placeat repellat omnis veritatis adipisci aliquam hic ullam facere voluptatibus ratione laudantium perferendis quos ut. Beatae expedita, itaque assumenda libero voluptatem adipisci maiores voluptas accusantium, blanditiis saepe culpa laborum iusto maxime quae aperiam fugiat odit consequatur soluta hic. Sed quasi beatae quia repellendus, adipisci facilis ipsa vel, aperiam, consequatur eaque mollitia quaerat. Iusto fugit inventore eveniet velit.</p>

				<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Quam magnam accusamus obcaecati nisi eveniet quo veniam quibusdam veritatis autem accusantium doloribus nam mollitia maxime explicabo nemo quae aspernatur impedit cupiditate dicta molestias consectetur, sint reprehenderit maiores. Tempora, exercitationem, voluptate. Sapiente modi officiis nulla sed ullam, amet placeat, illum necessitatibus, eveniet dolorum et maiores earum tempora, quas iste perspiciatis quibusdam vero accusamus veritatis. Recusandae sunt, repellat incidunt impedit tempore iusto, nostrum eaque necessitatibus sint eos omnis! Beatae, itaque, in. Vel reiciendis consequatur saepe soluta itaque aliquam praesentium, neque tempora. Voluptatibus sit, totam rerum quo ex nemo pariatur tempora voluptatem est repudiandae iusto, architecto perferendis sequi, asperiores dolores doloremque odit. Libero, ipsum fuga repellat quae numquam cumque nobis ipsa voluptates pariatur, a rerum aspernatur aliquid maxime magnam vero dolorum omnis neque fugit laboriosam eveniet veniam explicabo, similique reprehenderit at. Iusto totam vitae blanditiis. Culpa, earum modi rerum velit voluptatum voluptatibus debitis, architecto aperiam vero tempora ratione sint ullam voluptas non! Odit sequi ipsa, voluptatem ratione illo ullam quaerat qui, vel dolorum eligendi similique inventore quisquam perferendis reprehenderit quos officia! Maxime aliquam, soluta reiciendis beatae quisquam. Alias porro facilis obcaecati et id, corporis accusamus? Ab porro fuga consequatur quisquam illo quae quas tenetur.</p>
			</div> <!-- cd-panel-content -->
		</div> <!-- cd-panel-container -->
	</div> <!-- cd-panel -->
!

CSS 

              
                @import url(https://fonts.googleapis.com/css?family=Teko:300,400,500,600);

body {
	background:
		-webkit-linear-gradient(45deg, hsla(206, 48%, 76%, 1) 0%, hsla(206, 48%, 76%, 0) 70%),
		-webkit-linear-gradient(315deg, hsla(144, 58%, 100%, 1) 10%, hsla(144, 58%, 100%, 0) 80%),
		-webkit-linear-gradient(225deg, hsla(193, 34%, 100%, 1) 10%, hsla(193, 34%, 100%, 0) 80%),
		-webkit-linear-gradient(135deg, hsla(182, 0%, 44%, 1) 100%, hsla(182, 0%, 44%, 0) 70%);
	background:
		linear-gradient(45deg, hsla(206, 48%, 76%, 1) 0%, hsla(206, 48%, 76%, 0) 70%),
		linear-gradient(135deg, hsla(144, 58%, 100%, 1) 10%, hsla(144, 58%, 100%, 0) 80%),
		linear-gradient(225deg, hsla(193, 34%, 100%, 1) 10%, hsla(193, 34%, 100%, 0) 80%),
		linear-gradient(315deg, hsla(182, 0%, 44%, 1) 100%, hsla(182, 0%, 44%, 0) 70%);
	}



/* -------------------------------- 

Primary style

-------------------------------- */
*, *::after, *::before {
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
}

*::after, *::before {
  content: '';
}

body {
  font-size: 100%;
  font-family: "Droid Sans", sans-serif;
  color: #dbe2e9;

}

a {
  color: #89ba2c;
  text-decoration: none;
}

/* -------------------------------- 

Main components 

-------------------------------- */
html, body {
  height: 100%;
}

.cd-main-content {
  text-align: center;
}
.cd-main-content h1 {
font-size: 20px;
font-size: 8.25rem;
color: #636D7E;
padding: 1em 0;
font-family: teko;
text-transform: uppercase;
text-shadow: rgba(0, 0, 0, 0.03) 2px 2px, rgba(0, 0, 0, 0.0285) 4px 4px, rgba(0, 0, 0, 0.027) 6px 6px, rgba(0, 0, 0, 0.0255) 8px 8px, rgba(0, 0, 0, 0.024) 10px 10px, rgba(0, 0, 0, 0.0225) 12px 12px, rgba(0, 0, 0, 0.021) 14px 14px, rgba(0, 0, 0, 0.0195) 16px 16px, rgba(0, 0, 0, 0.018) 18px 18px, rgba(0, 0, 0, 0.0165) 20px 20px, rgba(0, 0, 0, 0.015) 22px 22px, rgba(0, 0, 0, 0.0135) 24px 24px, rgba(0, 0, 0, 0.012) 26px 26px, rgba(0, 0, 0, 0.0105) 28px 28px, rgba(0, 0, 0, 0.009) 30px 30px, rgba(0, 0, 0, 0.0075) 32px 32px, rgba(0, 0, 0, 0.006) 34px 34px, rgba(0, 0, 0, 0.0045) 36px 36px, rgba(0, 0, 0, 0.003) 38px 38px, rgba(0, 0, 0, 0.0015) 40px 40px;
}
.cd-main-content .cd-btn {
position: relative;
display: inline-block;
padding: .6em 1em;
background-color: #CCC;
color: #565E64;
font-weight: bold;
-webkit-font-smoothing: antialiased;
-moz-osx-font-smoothing: grayscale;
border-radius: 3px;
box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.5), 0 0 5px rgba(0, 0, 0, 0.1);
-webkit-transition: all 0.2s;
-moz-transition: all 0.2s;
transition: all 0.2s;
border: 1px solid rgba(54, 54, 54, 0.16);
font-family: teko;
font-size: 2rem;
font-weight: 400;
}
.cd-main-content .cd-btn:hover {
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.5), 0 0 12px rgba(0, 0, 0, 0.3);

}



@media only screen and (min-width: 1170px) {
  .cd-main-content h1 {
    font-size: 32px;
    font-size: 5rem;
  }
}

.cd-panel {
  position: fixed;
  top: 0;
  left: 0;
  height: 100%;
  width: 100%;
  visibility: hidden;
  -webkit-transition: visibility 0s 0.6s;
  -moz-transition: visibility 0s 0.6s;
  transition: visibility 0s 0.6s;
}
.cd-panel::after {
  /* overlay layer */
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: transparent;
  cursor: pointer;
  -webkit-transition: background 0.3s 0.3s;
  -moz-transition: background 0.3s 0.3s;
  transition: background 0.3s 0.3s;
}
.cd-panel.is-visible {
  visibility: visible;
  -webkit-transition: visibility 0s 0s;
  -moz-transition: visibility 0s 0s;
  transition: visibility 0s 0s;
}
.cd-panel.is-visible::after {
  background: rgba(0, 0, 0, 0.6);
  -webkit-transition: background 0.3s 0s;
  -moz-transition: background 0.3s 0s;
  transition: background 0.3s 0s;
}
.cd-panel.is-visible .cd-panel-close::before {
  -webkit-animation: cd-close-1 0.6s 0.3s;
  -moz-animation: cd-close-1 0.6s 0.3s;
  animation: cd-close-1 0.6s 0.3s;
}
.cd-panel.is-visible .cd-panel-close::after {
  -webkit-animation: cd-close-2 0.6s 0.3s;
  -moz-animation: cd-close-2 0.6s 0.3s;
  animation: cd-close-2 0.6s 0.3s;
}

@-webkit-keyframes cd-close-1 {
  0%, 50% {
    -webkit-transform: rotate(0);
  }
  100% {
    -webkit-transform: rotate(45deg);
  }
}
@-moz-keyframes cd-close-1 {
  0%, 50% {
    -moz-transform: rotate(0);
  }
  100% {
    -moz-transform: rotate(45deg);
  }
}
@keyframes cd-close-1 {
  0%, 50% {
    -webkit-transform: rotate(0);
    -moz-transform: rotate(0);
    -ms-transform: rotate(0);
    -o-transform: rotate(0);
    transform: rotate(0);
  }
  100% {
    -webkit-transform: rotate(45deg);
    -moz-transform: rotate(45deg);
    -ms-transform: rotate(45deg);
    -o-transform: rotate(45deg);
    transform: rotate(45deg);
  }
}
@-webkit-keyframes cd-close-2 {
  0%, 50% {
    -webkit-transform: rotate(0);
  }
  100% {
    -webkit-transform: rotate(-45deg);
  }
}
@-moz-keyframes cd-close-2 {
  0%, 50% {
    -moz-transform: rotate(0);
  }
  100% {
    -moz-transform: rotate(-45deg);
  }
}
@keyframes cd-close-2 {
  0%, 50% {
    -webkit-transform: rotate(0);
    -moz-transform: rotate(0);
    -ms-transform: rotate(0);
    -o-transform: rotate(0);
    transform: rotate(0);
  }
  100% {
    -webkit-transform: rotate(-45deg);
    -moz-transform: rotate(-45deg);
    -ms-transform: rotate(-45deg);
    -o-transform: rotate(-45deg);
    transform: rotate(-45deg);
  }
}
.cd-panel-header {
  position: fixed;
  width: 90%;
  height: 50px;
  line-height: 50px;
  background: rgba(255, 255, 255, 0.96);
  z-index: 2;
  box-shadow: 0 1px 1px rgba(0, 0, 0, 0.08);
  -webkit-transition: top 0.3s 0s;
  -moz-transition: top 0.3s 0s;
  transition: top 0.3s 0s;
}
.cd-panel-header h1 {
  font-weight: bold;
  color: #89ba2c;
  padding-left: 5%;
}
.from-right .cd-panel-header, .from-left .cd-panel-header {
  top: -50px;
}
.from-right .cd-panel-header {
  right: 0;
}
.from-left .cd-panel-header {
  left: 0;
}
.is-visible .cd-panel-header {
  top: 0;
  -webkit-transition: top 0.3s 0.3s;
  -moz-transition: top 0.3s 0.3s;
  transition: top 0.3s 0.3s;
}
@media only screen and (min-width: 768px) {
  .cd-panel-header {
    width: 70%;
  }
}
@media only screen and (min-width: 1170px) {
  .cd-panel-header {
    width: 50%;
  }
}

.cd-panel-close {
  position: absolute;
  top: 0;
  right: 0;
  height: 100%;
  width: 60px;
  /* image replacement */
  display: inline-block;
  overflow: hidden;
  text-indent: 100%;
  white-space: nowrap;
}
.cd-panel-close::before, .cd-panel-close::after {
  /* close icon created in CSS */
  position: absolute;
  top: 22px;
  left: 20px;
  height: 3px;
  width: 20px;
  background-color: #424f5c;
  /* this fixes a bug where pseudo elements are slighty off position */
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
}
.cd-panel-close::before {
  -webkit-transform: rotate(45deg);
  -moz-transform: rotate(45deg);
  -ms-transform: rotate(45deg);
  -o-transform: rotate(45deg);
  transform: rotate(45deg);
}
.cd-panel-close::after {
  -webkit-transform: rotate(-45deg);
  -moz-transform: rotate(-45deg);
  -ms-transform: rotate(-45deg);
  -o-transform: rotate(-45deg);
  transform: rotate(-45deg);
}
.no-touch .cd-panel-close:hover {
  background-color: #424f5c;
}
.no-touch .cd-panel-close:hover::before, .no-touch .cd-panel-close:hover::after {
  background-color: #ffffff;
  -webkit-transition-property: -webkit-transform;
  -moz-transition-property: -moz-transform;
  transition-property: transform;
  -webkit-transition-duration: 0.3s;
  -moz-transition-duration: 0.3s;
  transition-duration: 0.3s;
}
.no-touch .cd-panel-close:hover::before {
  -webkit-transform: rotate(220deg);
  -moz-transform: rotate(220deg);
  -ms-transform: rotate(220deg);
  -o-transform: rotate(220deg);
  transform: rotate(220deg);
}
.no-touch .cd-panel-close:hover::after {
  -webkit-transform: rotate(135deg);
  -moz-transform: rotate(135deg);
  -ms-transform: rotate(135deg);
  -o-transform: rotate(135deg);
  transform: rotate(135deg);
}

.cd-panel-container {
  position: fixed;
  width: 90%;
  height: 100%;
  top: 0;
  background: #dbe2e9;
  z-index: 1;
  -webkit-transition-property: -webkit-transform;
  -moz-transition-property: -moz-transform;
  transition-property: transform;
  -webkit-transition-duration: 0.3s;
  -moz-transition-duration: 0.3s;
  transition-duration: 0.3s;
  -webkit-transition-delay: 0.3s;
  -moz-transition-delay: 0.3s;
  transition-delay: 0.3s;
}
.from-right .cd-panel-container {
  right: 0;
  -webkit-transform: translate3d(100%, 0, 0);
  -moz-transform: translate3d(100%, 0, 0);
  -ms-transform: translate3d(100%, 0, 0);
  -o-transform: translate3d(100%, 0, 0);
  transform: translate3d(100%, 0, 0);
}
.from-left .cd-panel-container {
  left: 0;
  -webkit-transform: translate3d(-100%, 0, 0);
  -moz-transform: translate3d(-100%, 0, 0);
  -ms-transform: translate3d(-100%, 0, 0);
  -o-transform: translate3d(-100%, 0, 0);
  transform: translate3d(-100%, 0, 0);
}
.is-visible .cd-panel-container {
  -webkit-transform: translate3d(0, 0, 0);
  -moz-transform: translate3d(0, 0, 0);
  -ms-transform: translate3d(0, 0, 0);
  -o-transform: translate3d(0, 0, 0);
  transform: translate3d(0, 0, 0);
  -webkit-transition-delay: 0s;
  -moz-transition-delay: 0s;
  transition-delay: 0s;
}
@media only screen and (min-width: 768px) {
  .cd-panel-container {
    width: 70%;
  }
}
@media only screen and (min-width: 1170px) {
  .cd-panel-container {
    width: 50%;
  }
}

.cd-panel-content {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  padding: 70px 5%;
  overflow: auto;
  /* smooth scrolling on touch devices */
  -webkit-overflow-scrolling: touch;
}
.cd-panel-content p {
  font-size: 14px;
  font-size: 0.875rem;
  color: #424f5c;
  line-height: 1.4;
  margin: 2em 0;
}
.cd-panel-content p:first-of-type {
  margin-top: 0;
}
@media only screen and (min-width: 768px) {
  .cd-panel-content p {
    font-size: 16px;
    font-size: 1rem;
    line-height: 1.6;
  }
}
!

JS 

              
                jQuery(document).ready(function($){
	//open the lateral panel
	$('.cd-btn').on('click', function(event){
		event.preventDefault();
		$('.cd-panel').addClass('is-visible');
	});
	//clode the lateral panel
	$('.cd-panel').on('click', function(event){
		if( $(event.target).is('.cd-panel') || $(event.target).is('.cd-panel-close') ) { 
			$('.cd-panel').removeClass('is-visible');
			event.preventDefault();
		}
	});
});
!
999px

Console