html - 从左到右居中对齐 float 导航栏和下拉菜单

Question

我想将导航栏中的内容居中对齐(这样 img 就是导航栏的中心。我知道我有 float: left; 但如果我不这样做，(左边的东西，右边的东西)将会掉落向下到 img 的底部边缘。所以我想要的是保持向左浮动，但能够显示:内联 block ，或类似的东西。我还希望(左边的东西)的下拉栏从 img 开始左侧，然后向右侧扩展。
demo fiddle

HTML

  <div id="nav">
    <div id="container">
        <ul>
            <li>
               <a href="#"> Left thing </a>

                <ul>
                    <li><a href="#"><----- want it to go this way</a>
                    </li>
                    <li><a href="#">i want this to start under left thing</a>
                    </li>
                </ul>
            </li>
            <li>
                <img src="http://www.jonathanjeter.com/images/Square_200x200.png" style="height:70px" />
            </li>
            <li>
              <a href="#"> Right thing </a>

                <ul>
                    <li><a href="#">This starts right</a>
                    </li>
                    <li><a href="#">And this is right</a>
                    </li>
                </ul>
            </li>
        </ul>
    </div>
</div>

CSS

* {
    padding: 0;
    margin: 0;
}
#body {
    padding: 0;
    margin: 0;
    font-family: Arial;
    font-size: 17px;
}
#nav {
    background-color: 72776A;
    width: 100%;
    position:fixed;
    height:50px;
}
#nav ul {
    list-style-type: none;
    padding: 0;
    margin: 0;
    position: relative;
    display:block;
}
#nav ul li {
    float:left;
}
#container {
    text-align:;
}
#nav ul li:hover {
    background-color: #333;
}
#nav ul li a, visited {
    color: ACD661;
    display: block;
    padding: 15px;
    text-decoration: none;
}
#nav ul li:hover ul {
    display: block;
}
#nav ul ul {
    display: none;
    position:absolute;
    color: red;
    border: 1px solid black;
}
#nav ul ul li {
    display: block;
}
#nav ul ul li a:hover {
    color: #699;
}

Answer 1

替换

#container {
  width: 270px;
  margin: 0px auto;
}

检查 this fiddle