JSFiddle - React, Tailwind, and code Playground

HTML

<div id="wrapper">
      <div id="header"></div>
      <ul id="menu_wrap" class="Blue">
        <li class="button"><a href="#">Главная</a></li>
        <li class="button"><a href="#">Форум</a></li>
        <li class="button"><a href="#">Видео</a></li>
        <li class="button"><a href="#">Картинки</a></li>
        <li class="button"><a href="#">Гильдия</a></li>
      </ul>
      <div id="content_wrapper">
          <div id="sidebar_left"></div>
          <div id="content"><p>CONTENT</p></div>
          <div id="sidebar_right"></div>
          <div id="footer"></div>
      </div>
    </div>

CSS

body{
	background: #4682B4;
	cursor: url(../img/cursor.cur), auto;
}
#wrapper {
width: 1000px;
position: relative;
left: 50%;
margin-left: -500px;
}

p {
font-size: 14px;
color: #000;
font-family: "Tahoma";
padding: 10px;
margin: 0;
}

#header {
    height: 217px;
    background-image: url(http://s57.radikal.ru/i155/1411/57/89d75a35f014.jpg);
    -webkit-border-top-left-radius: 15px;
    -webkit-border-top-right-radius: 15px;
    -moz-border-radius-topleft: 15px;
    -moz-border-radius-topright: 15px;
    border-top-left-radius: 15px;
    border-top-right-radius: 20px;
}
#menu_wrap{
	margin: 0 auto;
	position: relative;
	padding: 0; 
	width: 1000px;
	height: 40px;
	list-style-type:none;
}
.button a{
	text-align: center;
	font: 13px/100% Arial, Helvetica, sans-serif;
	font-weight: bold;
	position: relative;
	min-width: 50px;
	height: 20px;
	float: left;
	padding: 10px;
	padding-top: 10px;
	padding-bottom: 10px;
	text-decoration: none;
	text-shadow: 0 1px 1px rgba(0,0,0,.3)}
.Blue,.Blue .button a{
	color:#d9eef7;
	background: #00adee;
	border-right:solid 1px #0078a5;
	background: -moz-linear-gradient(top, #00adee 0%, #0078a5 100%);
	background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#00adee), color-stop(100%,#0078a5));
	background: -webkit-linear-gradient(top, #00adee 0%,#0078a5 100%);
	background: -o-linear-gradient(top, #00adee 0%,#0078a5 100%);
	background: -ms-linear-gradient(top, #00adee 0%,#0078a5 100%);
}
.Blue .button a:hover,.Blue .button a:focus{
	background: #0095cc;
	background: -moz-linear-gradient(top, #0095cc 0%, #00678e 100%);
	background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#0095cc), color-stop(100%,#00678e));
	background: -webkit-linear-gradient(top, #0095cc 0%,#00678e 100%);
	background: -o-linear-gradient(top, #0095cc 0%,#00678e 100%);
	background: -ms-linear-gradient(top, #0095cc 0%,#00678e 100%);
}
.Blue .button a:active{
	background: #0078a5;
	background: -moz-linear-gradient(top, #0078a5 0%,...