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css - Can overflow text be centered?

问题描述:

When I specify text-align:center for an element with a width that is greater than the width of the text, the text is centered within the content box of the element (as expected).

When I specify text-align:center for an element with a width that is less than the width of the text, the text is aligned to the left edge of the content box and overflows the right edge of the content box.

You can see the two cases in action here.

Can any CSS magic make the text equally overflow both the left edge and the right edge of the content box, so that it stays centered?

网友答案:

I know this question is old, but I just had the same Problem and found a much easier solution with just a span. http://jsfiddle.net/7hy3w2jj/

<div>some text</div>
<div>
    <span class="text-overflow-center">some text that will overflow</span>
</div>

Then you just need this definition

.text-overflow-center {
    margin-left: -100%;
    margin-right: -100%;
    text-align: center;
}

If you can work with pseudo elements, it can be done with no html at all. Just add these definition to your text container. http://jsfiddle.net/7287L9a8/

div:before {
    content: "";
    margin-left: -100%;
}
div:after {
    content: "";
    margin-right: -100%;
}

The only downside to the pseudo variant is that it only works with one line of text.

网友答案:

Div magic to the rescue. In case anyone is interested, you can see the solution here.

HTML:

<div id="outer">
    <div id="inner">
        <div id="text">some text</div>
    </div>
</div>
<div id="outer">
    <div id="inner">
        <div id="text">some text that will overflow</div>
    </div>
</div>

CSS:

#outer {
    display: block;
    position: relative;
    left: 100px;
    width: 100px;
    border: 1px solid black;
    background-color: silver;
}
#inner {
    /* shrink-to-fit width */
    display: inline-block;
    position: relative;
    /* shift left edge of text to center */
    left: 50%;
}
#text {
    /* shift left edge of text half distance to left */
    margin-left: -50%;
    /* text should all be on one line */
    white-space: nowrap;
}
网友答案:

Strange requirement. I would expand the boxes to the texts size.

One possible solution might involve a negative text-indent: text-indent: -50px;, but that won't work for smaller texts (first DIV in your example). No better idea here right now.

网友答案:

Try

word-wrap:break-word;

instead of:

white-space:nowrap;

or do you only want it on one line?

网友答案:

this one seems to work: add a wrapper block with position relative and left:50% margin-left:-100% you can see it here Here's the code:

<style>
div {
    display: block;
    position: relative;
    left: 100px;
    height:1.5em;
    width: 100px;
    text-align: center;
    white-space: nowrap;
    border: 1px solid black;
    background-color: silver;
}
span{
    display:block;
    position:relative;
    left:50%;
    margin-left:-100%;
}
</style>
<div><span>some text</span></div>
<div><span>some text that will overflow</span></div>
网友答案:

To make the solution work for multi-line text, you can modify Nathan's solution by changing the #inner left from 50% to 25%.

网友答案:

Give the innermost div some margin: 0 -50%. If the elements are all display block or inline-block and text alignment is centered, this provides more shoulder room for the innermost element's text. At least, it works for me.

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