Edit in JSFiddle

// 랜덤하게 회전시키기

$('#menu > li').add('article').each(function() {
    var rdm_num = Math.floor(Math.random() * 40) - 20;
    $(this).css('transform', 'rotate(' + rdm_num + 'deg)');
});

// 차례로 메뉴 올리기

var delay = 250;

$('#menu > li').each(function() {
    $(this).animate({
        'margin-top': '-65px'
    }, delay += 100);
});

// 메뉴 전환하기

$('#menu > li').click(function() {
    var idx = $('#menu > li').index($(this));
    $('article').stop().animate({
        'top': '-900px'
    }, 500, function() {
        $('article').hide();
        $('article').eq(idx).show().stop().animate({
            'top': '-400px'
        }, 500);
    });
});

<nav>
        <ul id="menu">
            <li class="rotate"><span class="menu-text">HOME</span></li>
            <li class="rotate"><span class="menu-text">ABOUT</span></li>
            <li class="rotate"><span class="menu-text">SEARCH</span></li>
            <li class="rotate"><span class="menu-text">PHOTOS</span></li>
            <li class="rotate"><span class="menu-text">CONTACT</span></li>
        </ul>
    </nav>
    <article class="on rotate">
        <div>
            <h2 class="title">HOME</h2>
            <p class="para">IF ANYBODY LOOKS AT A PICTURE BY CLAUDE MONET FROM THE POINT OF VIEW OF A RAPHAEL, HE WILL SEE NOTHING BUT A MEANINGLESS JARGON OF WILD PAINT-STROKES. AND IF ANYBODY LOOKS AT A RAPHAEL FROM THE POINT OF VIEW OF A CLAUDE MONET, HE WILL, NO DOUBT...</p>
        </div>
    </article>
    <article>
        <div>
            <h2 class="title">ABOUT</h2>
            <p class="para">IF ANYBODY LOOKS AT A PICTURE BY CLAUDE MONET FROM THE POINT OF VIEW OF A RAPHAEL, HE WILL SEE NOTHING BUT A MEANINGLESS JARGON OF WILD PAINT-STROKES. AND IF ANYBODY LOOKS AT A RAPHAEL FROM THE POINT OF VIEW OF A CLAUDE MONET, HE WILL, NO DOUBT...</p>
        </div>
    </article>
    <article>
        <div>
            <h2 class="title">SEARCH</h2>
            <p class="para">IF ANYBODY LOOKS AT A PICTURE BY CLAUDE MONET FROM THE POINT OF VIEW OF A RAPHAEL, HE WILL SEE NOTHING BUT A MEANINGLESS JARGON OF WILD PAINT-STROKES. AND IF ANYBODY LOOKS AT A RAPHAEL FROM THE POINT OF VIEW OF A CLAUDE MONET, HE WILL, NO DOUBT...</p>
        </div>
    </article>
    <article>
        <div>
            <h2 class="title">PHOTOS</h2>
            <p class="para">IF ANYBODY LOOKS AT A PICTURE BY CLAUDE MONET FROM THE POINT OF VIEW OF A RAPHAEL, HE WILL SEE NOTHING BUT A MEANINGLESS JARGON OF WILD PAINT-STROKES. AND IF ANYBODY LOOKS AT A RAPHAEL FROM THE POINT OF VIEW OF A CLAUDE MONET, HE WILL, NO DOUBT...</p>
        </div>
    </article>
    <article>
        <div>
            <h2 class="title">CONTACT</h2>
            <p class="para">IF ANYBODY LOOKS AT A PICTURE BY CLAUDE MONET FROM THE POINT OF VIEW OF A RAPHAEL, HE WILL SEE NOTHING BUT A MEANINGLESS JARGON OF WILD PAINT-STROKES. AND IF ANYBODY LOOKS AT A RAPHAEL FROM THE POINT OF VIEW OF A CLAUDE MONET, HE WILL, NO DOUBT...</p>
        </div>
    </article>

* {
  margin: 0;
  padding: 0;
}
html {
  width: 100%;
  min-width: 1024px;
}
ul {
  list-style-type: none;
}
#menu {
  position: absolute;
  right: 100px;
  z-index: 11;
}
#menu:after {
  display: block;
  content: '';
  clear: both;
}
#menu > li {
  position: relative;
  margin-top: -40px;
  width: 100px;
  height: 100px;
  background: url(http://www.tympanus.net/Tutorials/GrungyRandomSlideOut/item.png) no-repeat center center;
  background-size: cover;
  text-align: center;
  line-height: 160px;
  font-weight: bold;
  text-shadow: 1px 1px 1px #fff;
  float: left;
  cursor: pointer;
  transition: all .5s;
}
#menu > li:hover {
  margin-top: -40px !important;
}
article {
  position: relative;
  box-sizing: border-box;
  padding: 0 100px 0 50px;
  top: -1000px;
  width: 824px;
  height: 850px;
  margin: 0 auto;
  background: url(http://www.tympanus.net/Tutorials/GrungyRandomSlideOut/bg.gif) no-repeat;
  background-size: cover;
  display: none;
}
article > div {
  position: absolute;
  padding: 0 50px 0 20px;
  bottom: 80px;
}
article.on {
  display: block;
  top: -400px;
}
.title {
  font-size: 50px;
  text-shadow: 2px 2px 2px #fff;
  margin-bottom: 30px;
}
.para {
  margin-left: 15px;
  font-size: 16px;
  font-weight: bold;
}