How do I center align horizontal
    menu?

2020-01-22 14:46发布

站内文章 / HTML/CSS
17 0 0

问题:

I need to center align a horizontal menu.
I've tried various solutions, including the mix of inline-block / block / center-align etc., but haven't succeeded.

Here is my code:

<div class="topmenu-design">
    <!-- Top menu content: START -->
    <ul id="topmenu firstlevel">                                                                                       
      <li class="firstli" id="node_id_64"><div><a href="#"><span>Om kampanjen</span></a></div></li>
      <li id="node_id_65"><div><a href="#"><span>Fakta om inneklima</span></a></div></li>
      <li class="lastli" id="node_id_66"><div><a href="#"><span>Statistikk</span></a></div></li>
    </ul>
    <!-- Top menu content: END -->
</div>

UPDATE

I know how to center align the ul within the div. That can be accomplished using Sarfraz's suggestion. But the list items are still floated left within the ul.

Do I need Javascript to accomplish this?

回答1:

From http://pmob.co.uk/pob/centred-float.htm:

The premise is simple and basically just involves a widthless float wrapper that is floated to the left and then shifted off screen to the left width position:relative; left:-50%. Next the nested inner element is reversed and a relative position of +50% is applied. This has the effect of placing the element dead in the center. Relative positioning maintains the flow and allows other content to flow underneath.

Code

#buttons{
    float:right;
    position:relative;
    left:-50%;
    text-align:left;
}
#buttons ul{
    list-style:none;
    position:relative;
    left:50%;
}

#buttons li{float:left;position:relative;}/* ie needs position:relative here*/

#buttons a{
    text-decoration:none;
    margin:10px;
    background:red;
    float:left;
    border:2px outset blue;
    color:#fff;
    padding:2px 5px;
    text-align:center;
    white-space:nowrap;
}
#buttons a:hover{ border:2px inset blue;color:red;background:#f2f2f2;}
#content{overflow:hidden}/* hide horizontal scrollbar*/
<div id="buttons">
    <ul>
        <li><a href="#">Button 1</a></li>
        <li><a href="#">Button 2's a bit longer</a></li>
        <li><a href="#">Butt 3</a></li>
        <li><a href="#">Button 4</a></li>
    </ul>
</div>



回答2:

This works for me. If I haven't misconstrued your question, you might give it a try.

    div#centerDiv {
        width: 100%;
        text-align: center;
        border: 1px solid red;
    }
    ul.centerUL {
        margin: 2px auto;
        line-height: 1.4;
        padding-left: 0;
    }
    .centerUL li {
        display: inline;
        text-align: center;
    }
<div id="centerDiv">
    <ul class="centerUL">
        <li><a href="http://www.amazon.com">Amazon 1</a>&nbsp;&nbsp;</li>
        <li><a href="http://www.amazon.com">Amazon 2</a>&nbsp;&nbsp;</li>
        <li><a href="http://www.amazon.com">Amazon 3</a></li>
    </ul>
</div>



回答3:

With CSS3 flexbox. Simple.

ul {
  display: flex;
  justify-content: center;
}

ul li {
  padding: 0 8px;
}


回答4:

This is the simplest way I found. I used your html. The padding is just to reset browser defaults.

ul {
  text-align: center;
  padding: 0;
}
li {
  display: inline-block;
}
<div class="topmenu-design">
  <!-- Top menu content: START -->
  <ul id="topmenu firstlevel">
    <li class="firstli" id="node_id_64">
      <div><a href="#"><span>Om kampanjen</span></a>
      </div>
    </li>
    <li id="node_id_65">
      <div><a href="#"><span>Fakta om inneklima</span></a>
      </div>
    </li>
    <li class="lastli" id="node_id_66">
      <div><a href="#"><span>Statistikk</span></a>
      </div>
    </li>
  </ul>
  <!-- Top menu content: END -->
</div>



回答5:

Here's a good article on how to do it in a pretty rock-solid way, without any hacks and full cross-browser support. Works for me:

--> http://matthewjamestaylor.com/blog/beautiful-css-centered-menus-no-hacks-full-cross-browser-support



回答6:

Try this:

div.topmenu-design ul
{
  display:block;
  width:600px; /* or whatever width value */
  margin:0px auto;
}


回答7:

Do it like this :

   <div id="footer">
        <ul>
            <li><a href="/1.html">Link 1</a></li>
            <li><a href="/2.html">Link 2</a></li>
            <li><a href="/3.html">Link 3</a></li>
            <li><a href="/4.html">Link 4</a></li>
            <li><a href="/5.html">Link 5</a></li>
        </ul>
   </div>

And the CSS:

#footer {
    background-color:#ccc;
    height:39px;
    line-height:36px;
    margin:0 auto;
    text-align:center;
    width:950px;
}

#footer ul li {
    display:inline;
    font-family:Arial,sans-serif;
    font-size:1em;
    padding:0 2px;
    text-decoration:none;
}


回答8:

Like so many of you, I've been struggling with this for a while. The solution ultimately had to do with the div containing the UL. All suggestions on altering padding, width, etc. of the UL had no effect, but the following did.

It's all about the margin:0 auto; on the containing div. I hope this helps some people, and thanks to everyone else who already suggested this in combination with other things.

.divNav
{
    width: 99%;
    text-align:center;
    margin:0 auto; 
}

.divNav ul
{ 
    display:inline-block; 
    list-style:none;
    zoom: 1;
}

.divNav ul li 
{
    float:left;
    margin-right: .8em;       
    padding: 0; 
}

.divNav a,  #divNav a:visited
{
    width: 7.5em;
    display: block; 
    border: 1px solid #000;
    border-bottom:none;
    padding: 5px; 
    background-color:#F90;
    text-decoration: none;
    color:#FFF;
    text-align: center;
    font-family:Verdana, Geneva, sans-serif;
    font-size:1em;
}


回答9:

Demo - http://codepen.io/grantex/pen/InLmJ

<div class="navigation">
    <ul>
        <li><a href="">Home</a></li>
        <li><a href="">About</a></li>
        <li><a href="">Contact</a></li>
        <li><a href="">Menu</a></li>
        <li><a href="">Others</a></li>
    </ul>
</div>


.navigation {
    max-width: 700px;
    margin: 0 auto;
}
.navigation ul {
    list-style: none;
    display: table;
    width: 100%;
}
.navigation ul li {
    display: table-cell;
    text-align: center;
}
.navigation ul li a {
    padding: 5px 10px;
    width: 100%;
}

Omg so much cleaner.



回答10:

Generally speaking the way to center a black level element (like a <ul>) is using the margin:auto; property.

To align text and inline level elements within a block level element use text-align:center;. So all together something like...

ul {
    margin:auto;
}
ul li {
    text-align:center;
    list-style-position:inside; /* so that the bullet points are also centered */
}
ul li div {
    display:inline; /* so that the bullet points aren't above the content */
}

... should work.

The fringe case is Internet Explorer6... or even other IEs when not using a <!DOCTYPE>. IE6 incorrectly aligns block level elemnts using text-align. So if you're looking to support IE6 (or not using a <!DOCTYPE>) your full solution is...

div.topmenu-design {
    text-align:center;
}
div.topmenu-design ul {
    margin:auto;
}
div.topmenu-design ul li {
    text-align:center;
    list-style-position:inside; /* so that the bullet points are also centered */
}
div.topmenu-design ul li div {
    display:inline; /* so that the bullet points aren't above the content */
}

As a footnote, I think id="topmenu firstlevel" is invalid as an id attribute can't contain spaces... ? Indeed the w3c recommendation defines the id attribute as a 'name' type...

ID and NAME tokens must begin with a letter ([A-Za-z]) and may be followed by any number of letters, digits ([0-9]), hyphens ("-"), underscores ("_"), colons (":"), and periods (".").



回答11:

I used the display:inline-block property: the solution consist in use a wrapper with fixed width. Inside, the ul block with the inline-block for display. Using this, the ul just take the width for the real content! and finally margin: 0 auto, to center this inline-block =)

/*ul wrapper*/
.gallery_wrapper{
        width:          958px;
        margin:         0 auto;
  }
/*ul list*/
ul.gallery_carrousel{
        display:        inline-block;
        margin:         0 auto;
}
.contenido_secundario li{
        float:          left;
}


回答12:

i use jquery code for this. (Alternative solution)

    $(document).ready(function() { 
       var margin = $(".topmenu-design").width()-$("#topmenu").width();
       $("#topmenu").css('margin-left',margin/2);
    });


回答13:

div {
     text-align: center;
}
div ul {
     display: inline-table;
}

ul as inline-table fixes the with issue. I used the parent div to align the text to center. this way it looks good even in other languages (translation, different width)



回答14:

@Robusto's solution was the simplest for what I was trying to do, I suggest you use it. I was trying to do the same thing for images in an unordered list to make a gallery... I made a js fiddle to fool around with it. Feel free to try it here.

[it was set up using robusto's sample code]
HTML:

<div id="centerDiv">
    <ul class="centerUL">
        <li><a href="http://www.amazon.com"><img src="http://placehold.it/200x150>         </a>&nbsp;&nbsp;</li>
        <li><a href="http://www.amazon.com"><img src="http://placehold.it/200x150"></a>&nbsp;&nbsp;</li>
        <li><a href="http://www.amazon.com"><img src="http://placehold.it/200x150"></a></li>
    </ul>
</div>


CSS:

div#centerDiv {
    width: 700px;
    text-align: center;
    border: 1px solid red;
}
ul.centerUL {
    margin: 2px auto;
    line-height: 1.4;
}
.centerUL li {
    display: inline;
    text-align: center;
}


回答15:

ul{margin-left:33%}

Is a decent approximation on big screens. Its not good, but a good dirty fix.



回答16:

.topmenu-design
{
    display: inline-table;
}

That all!



标签： css xhtml menuitem
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