html - 添加边框和内嵌框阴影？

Question

除了内嵌框阴影之外，我还尝试添加一个 1px 的黑色边框。出于某种原因，我的代码无法正常工作。我是 CSS 和 HTML 的新手，所以请各位好心的成员(member)给我一些适合初学者的建议。

这就是它的外观(底部)和它应该的外观(顶部)——不包括大小和字体的变化。我只想要相同的阴影和边框样式。

Jfiddle: https://jsfiddle.net/kad7g4uf/

HTML:

            <div id="navContainer"> 
            <nav>
                <ul>
                    <li><a href="#">Home</a></li>
                    <li><a href="#">Website Design</a></li>           
                    <li><a href="#">Art &amp; Poetry</a></li>  
                    <li><a href="#">Blog &amp; Other</a></li>
                    <li><a href="#">Music &amp; More</a></li>
                    <li><a href="#">Shop</a></li>  
                </ul>
            </nav>
        </div><!--end of nav container div-->

CSS:

.container {
    width: 960px;
    padding: 0 10px;
    margin: 0 auto;
}


#navContainer {
    width: 100%;
}

#navContainer nav {
    width: 960px;
    margin-left: auto;
    margin-right: auto;
}

#navContainer ul {
    list-style: none;
    list-style-type: none;
    padding: 0px 0px;
    margin: 0px 0px;
}

#navContainer li {
    float: left;
    width: 16.666667%;
    text-align: center;
}

#navContainer a {
    text-decoration: none;
    display: block;
    background-color: #005073;
    line-height: 30px;
    height: 30px;
}

#navContainer a {
    text-decoration: none;
    display: block;
    background-color: #005073;
   line-height: 30px;
    color: #EBEAEA;
    text-shadow: 
        -1px -1px 1px rgba(0, 0, 0, .6), 
        1px -1px 1px rgba(0, 0, 0, .6), 
        -1px 1px 1px rgba(0, 0, 0, .6), 
        1px 1px 1px rgba(0, 0, 0, .6);
    font-weight: 600;
    background-image: -webkit-linear-gradient(rgba(0,0,0,.2), rgba(125,125,125,.3)); /* For Safari 5.1 to 6.0 */
    background-image: -o-linear-gradient(rgba(0,0,0,.2), rgba(125,125,125,.3)); /* For Opera 11.1 to 12.0 */
    background-image: -moz-linear-gradient(rgba(0,0,0,.2), rgba(125,125,125,.3)); /* For Firefox 3.6 to 15 */
    background-image: linear-gradient(rgba(0,0,0,.2), rgba(125,125,125,.3)); /* Standard syntax */
}

#navContainer a:hover {
    color: #E1E0E0;
    background-image: -webkit-linear-gradient(rgba(0,0,0,.3), rgba(0,0,0,.2)); /* For Safari 5.1 to 6.0 */
    background-image: -o-linear-gradient(rgba(0,0,0,.3), rgba(0,0,0,.2)); /* For Opera 11.1 to 12.0 */
    background-image: -moz-linear-gradient(rgba(0,0,0,.3), rgba(0,0,0,.2)); /* For Firefox 3.6 to 15 */
    background-image: linear-gradient(rgba(0,0,0,.3), rgba(0,0,0,.2)); /* Standard syntax */
}

Jfiddle 上面的代码

Answer 1

CSS

#navContainer {
    width: 100%;
    border : 1px solid #000;
    background-color: #005073;
}

.shadow {
   -moz-box-shadow:    inset 0 0 10px #000000;
   -webkit-box-shadow: inset 0 0 10px #000000;
   box-shadow:         inset 0 0 10px #000000;
}

HTML

 <div id="navContainer" class="shadow"> 
            <nav>
                <ul>
                    <li><a href="#">Home</a></li>
                    <li><a href="#">Website Design</a></li>           
                    <li><a href="#">Art &amp; Poetry</a></li>  
                    <li><a href="#">Blog &amp; Other</a></li>
                    <li><a href="#">Music &amp; More</a></li>
                    <li><a href="#">Shop</a></li>  
                </ul>
            </nav>
            <div style="clear:both"></div> <!-- I've add this code -->
 </div><!--end of nav container div-->

Why doesn't the height of a container element increase if it contains floated elements?

这就是为什么你必须添加这段代码

并且你必须在你的 css "#navContainer a"中删除 bakcground-color 属性