Center HTML Input Text Field Placeholder

How can I centre the input field's placeholder's alignment in a html form?

I am using the following code, but it doesn't work:

CSS ->

input.placeholder {
    text-align: center;
}
.emailField {
    top:413px;
    right:290px;
    width: 355px;
    height: 30px;
    position: absolute;
    border: none;
    font-size: 17;
    text-align: center;
}

HTML ->

<form action="" method="POST">
    <input type="text" class="emailField" placeholder="[email protected]" style="text-align: center" name="email" />
    <!<input type="submit" value="submit" />  
</form>

If you want to change only the placeholder style

::-webkit-input-placeholder {
   text-align: center;
}

:-moz-placeholder { /* Firefox 18- */
   text-align: center;  
}

::-moz-placeholder {  /* Firefox 19+ */
   text-align: center;  
}

:-ms-input-placeholder {  
   text-align: center; 
}

input{
   text-align:center;
}

is all you need.

Working example in FF6. This method doesn't seem to be cross-browser compatible.

Your previous CSS was attempting to center the text of an input element which had a class of "placeholder".

The HTML5 placeholder element can be styled for those browsers that accept the element, but in diferent ways, as you can see here: http://davidwalsh.name/html5-placeholder-css.

But I don't believe that text-align will be interpreted by the browsers. At least on Chrome, this attribute is ignored. But you can always change other things, like color, font-size, font-family etc. I suggest you rethinking your design whether possible to remove this center behavior.

EDIT

If you really want this text centered, you can always use some jQuery code or plugin to simulate the placeholder behavior. Here is a sample of it: http://www.hagenburger.net/BLOG/HTML5-Input-Placeholder-Fix-With-jQuery.html.

This way the style will work:

input.placeholder {
    text-align: center;
}