blocks|key|942625|text|试试下面这样的方法。此方法将img设置为display:+inline-block，使其成为内联元素，并允许它在父元素上声明text-align:+center时对齐中心。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|942626|​|942627|/*#center+img+{
++display:+block;
++margin:+auto;
}*/

#center+{
++++text-align:+center;
}

ul+{
++++list-style:+none;
++++margin:+auto;
++++padding:+0px;
}

.nav+{
++++background:+#ddd;
++++border-bottom:+1px+solid+#bebebe;
}|code-block|syntax|javascript|942628|<div+class="nav">
++<ul>
++++<li+id="center">
++++++<a+href="#"><img+src="https://placeholdit.imgix.net/~text?txtsize=38&txt=300%25C3%2597100&w=300&h=100"></a>
++++</li>
++</ul>
</div>|942629|942630|额外的空间可能来自某个地方的流氓浏览器/供应商风格，值得关注的元素是ul和li，它们通常带有默认的padding+&+margin规则。|942631|通过浏览器开发工具/IDE检查这些元素，并根据使用的浏览器查看“框模型”、“布局”或“计算样式”。|942632|entityMap^0|E|3|K|L|1Q|I|0|0|0|0|0|Y|2|11|2|1D|7|1N|6|0|0^^$0|@$1|2|3|4|5|6|7|V|8|@$9|W|A|X|B|C]|$9|Y|A|Z|B|C]|$9|10|A|11|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|12|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|13|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|J|7|14|8|@]|D|@]|E|$K|L]]|$1|O|3|G|5|6|7|15|8|@]|D|@]|E|$]]|$1|P|3|Q|5|6|7|16|8|@$9|17|A|18|B|C]|$9|19|A|1A|B|C]|$9|1B|A|1C|B|C]|$9|1D|A|1E|B|C]]|D|@]|E|$]]|$1|R|3|S|5|6|7|1F|8|@]|D|@]|E|$]]|$1|T|3|-4|5|6|7|1G|8|@]|D|@]|E|$]]]|U|$]]

<p>Try something like the below. This method sets the <code>img</code> to <code>display: inline-block</code>, making it an inline element and allowing it to align center when declaring <code>text-align: center</code> on the parent element.</p>

<p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
<div class="snippet-code">
<pre class="snippet-code-css lang-css prettyprint-override"><code>/*#center img {
  display: block;
  margin: auto;
}*/

#center {
    text-align: center;
}

ul {
    list-style: none;
    margin: auto;
    padding: 0px;
}

.nav {
    background: #ddd;
    border-bottom: 1px solid #bebebe;
}</code></pre>
<pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;div class="nav"&gt;
  &lt;ul&gt;
    &lt;li id="center"&gt;
      &lt;a href="#"&gt;&lt;img src="https://placeholdit.imgix.net/~text?txtsize=38&amp;txt=300%C3%97100&amp;w=300&amp;h=100"&gt;&lt;/a&gt;
    &lt;/li&gt;
  &lt;/ul&gt;
&lt;/div&gt;</code></pre>
</div>
</div>
</p>

<p>The extra space is probably coming from a rogue browser/vendor style somewhere, suspect elements to look at are the <code>ul</code> and <code>li</code> which typically come with default <code>padding</code> &amp; <code>margin</code> rules.<br>
Inspect these elements through your browser developer tool/IDE and have a look at the "box model", or "layout", or "computed styles" depending on the browser you're using.</p>


blocks|key|645726|text|看看这把小提琴。https://jsfiddle.net/5huhpxuk/|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|645727|​|645728|#center+img+{
++display:+block;
++margin:+auto;
}

.nav+{
++background-color:+black;
++line-height:+0%25
}|code-block|syntax|javascript|645729|<div+class="nav">
++<ul>
++++<li+id="center">
++++++<a+href="home.php"><img+src="http://zdnet3.cbsistatic.com/hub/i/2015/09/01/cb834e24-18e7-4f0a-a9bf-4c2917187d3f/83bb139aac01023dbf3e55a3d1789ad8/google-new-logo.png"></a>
++++</li>
++</ul>
</div>|645730|645731|entityMap|0|LINK|mutability|MUTABLE|url|https://jsfiddle.net/5huhpxuk/^0|8|U|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|V|8|@]|9|@$A|W|B|X|1|Y]]|C|$]]|$1|D|3|E|5|6|7|Z|8|@]|9|@]|C|$]]|$1|F|3|G|5|H|7|10|8|@]|9|@]|C|$I|J]]|$1|K|3|L|5|H|7|11|8|@]|9|@]|C|$I|J]]|$1|M|3|E|5|6|7|12|8|@]|9|@]|C|$]]|$1|N|3|-4|5|6|7|13|8|@]|9|@]|C|$]]]|O|$P|$5|Q|R|S|C|$T|U]]]]

<p>Check this fiddle. 
<a href="https://jsfiddle.net/5huhpxuk/" rel="nofollow noreferrer">https://jsfiddle.net/5huhpxuk/</a></p>

<p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
<div class="snippet-code">
<pre class="snippet-code-css lang-css prettyprint-override"><code>#center img {
  display: block;
  margin: auto;
}

.nav {
  background-color: black;
  line-height: 0%
}</code></pre>
<pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;div class="nav"&gt;
  &lt;ul&gt;
    &lt;li id="center"&gt;
      &lt;a href="home.php"&gt;&lt;img src="http://zdnet3.cbsistatic.com/hub/i/2015/09/01/cb834e24-18e7-4f0a-a9bf-4c2917187d3f/83bb139aac01023dbf3e55a3d1789ad8/google-new-logo.png"&gt;&lt;/a&gt;
    &lt;/li&gt;
  &lt;/ul&gt;
&lt;/div&gt;</code></pre>
</div>
</div>
</p>


blocks|key|2359027|text|​|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2359028|#center+img{
display:+block;
margin:+auto;
}
ul{margin:0;}
li{padding:0;list-style:none;}|code-block|syntax|javascript|2359029|<div+class="nav">
++++++++<ul>
++++++++++++<li+id="center"><a+href="home.php"><img+src="https://dummyimage.com/50x50/000/fff"></a></li>
++++++++</ul>
++++</div>|2359030|2359031|演示|offset|length|2359032|entityMap|0|LINK|mutability|MUTABLE|url|https://jsfiddle.net/1fp28t1f/^0|0|0|0|0|0|2|0|0^^$0|@$1|2|3|4|5|6|7|V|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|W|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|D|7|X|8|@]|9|@]|A|$E|F]]|$1|I|3|4|5|6|7|Y|8|@]|9|@]|A|$]]|$1|J|3|K|5|6|7|Z|8|@]|9|@$L|10|M|11|1|12]]|A|$]]|$1|N|3|-4|5|6|7|13|8|@]|9|@]|A|$]]]|O|$P|$5|Q|R|S|A|$T|U]]]]

<p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
<div class="snippet-code">
<pre class="snippet-code-css lang-css prettyprint-override"><code>#center img{
display: block;
margin: auto;
}
ul{margin:0;}
li{padding:0;list-style:none;}</code></pre>
<pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;div class="nav"&gt;
        &lt;ul&gt;
            &lt;li id="center"&gt;&lt;a href="home.php"&gt;&lt;img src="https://dummyimage.com/50x50/000/fff"&gt;&lt;/a&gt;&lt;/li&gt;
        &lt;/ul&gt;
    &lt;/div&gt;</code></pre>
</div>
</div>
</p>

<p><a href="https://jsfiddle.net/1fp28t1f/" rel="nofollow noreferrer">Demo</a></p>


<p><a href="https://i.stack.imgur.com/Oxmqa.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Oxmqa.png" alt="enter image description here"></a>I want to align the logo at the center in the navigation bar of the page.</p>

<p>This is my code:</p>

<pre><code>&lt;div class="nav"&gt;
    &lt;ul&gt;
        &lt;li id="center"&gt;
           &lt;a href="home.php"&gt;&lt;img src="images/w_logo.gif"&gt;&lt;/a&gt;
        &lt;/li&gt;
    &lt;/ul&gt;
&lt;/div&gt;
</code></pre>

<p>I have found this solution online:</p>

<pre><code>#center img{
    display: block;
    margin: auto;
}
</code></pre>

<p>But the problem is that by using display:block property I am getting space around the image which is increasing the height of my navigation bar and I am not being able to remove that space.</p>

<p>Help would be appreciated.</p>


Align image in center without getting space

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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​我想在页面导航栏的中心对齐徽标。这是我的密码：<div class="nav">    <ul>        <li id="center">           <a href="home.php"><img src="images/w_logo.gif"></a>        </li>    </ul></...

问在没有空间的情况下对齐中心的图像
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问在没有空间的情况下对齐中心的图像EN