How to vertically align inline elements

问题:

I have this anchor tag that has text between to be vertically align text. I'm using this css attribute vertical-align: middle. Nothing happens tho.

回答1:

You can make it inline-block and give it a line-height:

a {
    line-height: 50px;
    display: inline-block;
}

JSFiddle with working example: http://jsfiddle.net/KgqJS/

回答2:

vertical-align only works on elements with display: table-cell, and that property value isn't supported in < IE8.

Known text

If you know the text to be centred, it is rather easy. You have two options.

<style type="text/css">
    #container {
        padding: 10px 0;
    }
</style>
<div id="container">
    Example of some lovely<br />
    multiline text.
</div>

You can use CSS's padding to add padding top and bottom, to make the text appear in the middle. This is useful for multiline text.

<style type="text/css">
    #container {
        height: 100px;
        line-height: 100px;
    }
</style>
<div id="container">
    Example
</div>

You can exploit the line-height property to make the text vertically centred. This only works with one line of text. You can guess what happens if there is more than 1.

Dynamic multiline text

Here is where things start to get somewhat tricky, and may have you crying for tables.

<style type="text/css">
    #container {
        display: table-cell;
        vertical-align: middle;
    }
</style>
<div id="container">
    <?php echo $content; ?>
</div>

Workaround for < IE8.

Source.

回答3:

<div><p>test test test test<p></div>

div{
    border:1px solid red;
    width:400px;
    height:400px;
    position:relative;
}


p{
    height:30px;
    position:absolute;
    top:50%;
    margin-top:-15px; /* negative half of height*/
}

Check working example at http://jsfiddle.net/Z2ssq/1/