351
votes

Well I am trying to submit a form by pressing enter but not displaying a submit button. I don't want to get into JavaScript if possible since I want everything to work on all browsers (the only JS way I know is with events).

Right now the form looks like this:

<form name="loginBox" target="#here" method="post">
    <input name="username" type="text" /><br />
    <input name="password" type="password" />
    <input type="submit" style="height: 0px; width: 0px; border: none; padding: 0px;" hidefocus="true" />
</form>

Which works pretty well. The submit button works when the user presses enter, and the button doesn't show in Firefox, IE, Safari, Opera and Chrome. However, I still don't like the solution since it is hard to know whether it will work on all platforms with all browsers.

Can anyone suggest a better method? Or is this about as good as it gets?

20
Small point that might shave a few characters off your CSS and will typically be done automatically be minifiers- you do not need units for zero length measurements. 0px = 0pt = 0em = 0em etc.pwdst
@pwdst thanks for pointing this out - I'm from the Python world, so "explicit is better than implicit", and genuinely wondering if this is the case in CSS, or do CSS creators have a different idiom?ericmjl
Zero is the exception to the rule here @ericmjl - 0px == 0em == 0% == 0vh == 0vh etc. In other (non-zero) length measurements it is not only bad practice but against standards not to specify units and you'll see varying behaviour in user agents (browsers). See developer.mozilla.org/en-US/docs/Web/CSS/length and drafts.csswg.org/css-values-3/#lengthspwdst
If in doubt, put an explicit length unit in other words.pwdst
While it certainly doesn't hurt to add the unit with 0, not having any should be 100% valid regardless of language, in fact all the way back up to mathematical abstractions. OTOH, a handy use of having vs. not having them is to convey the message whether the given property is "really meant to be 0, and stay that way" (no unit), vs. "that thing happens to be zero now, but might be adjusted to taste; or whatever..." (with unit).Sz.

20 Answers

255
votes
Notice
Please do not use this in the year 2021+. Look down below and pick a better - more modern - answer.

Try:

<input type="submit" style="position: absolute; left: -9999px"/>

That will push the button waaay to the left, out of the screen. The nice thing with this is, you'd get graceful degradation when CSS is disabled.

Update - Workaround for IE7

As suggested by Bryan Downing + with tabindex to prevent tab reach this button (by Ates Goral):

<input type="submit" 
       style="position: absolute; left: -9999px; width: 1px; height: 1px;"
       tabindex="-1" />
103
votes

I think you should go the Javascript route, or at least I would:

<script type="text/javascript">
// Using jQuery.

$(function() {
    $('form').each(function() {
        $(this).find('input').keypress(function(e) {
            // Enter pressed?
            if(e.which == 10 || e.which == 13) {
                this.form.submit();
            }
        });

        $(this).find('input[type=submit]').hide();
    });
});
</script>


<form name="loginBox" target="#here" method="post">
    <input name="username" type="text" /><br />
    <input name="password" type="password" />
    <input type="submit" />
</form>
82
votes

Have you tried this ?

<input type="submit" style="visibility: hidden;" />

Since most browsers understand visibility:hidden and it doesn't really work like display:none, I'm guessing that it should be fine, though. Haven't really tested it myself, so CMIIW.

35
votes

Another solution without the submit button:

HTML

<form>
  <input class="submit_on_enter" type="text" name="q" placeholder="Search...">
</form>

jQuery

$(document).ready(function() {

  $('.submit_on_enter').keydown(function(event) {
    // enter has keyCode = 13, change it if you want to use another button
    if (event.keyCode == 13) {
      this.form.submit();
      return false;
    }
  });

});
26
votes

For anyone looking at this answer in future, HTML5 implements a new attribute for form elements, hidden, which will automatically apply display:none to your element.

e.g.

<input type="submit" hidden />
13
votes

Use following code, this fixed my problem in all 3 browsers (FF, IE and Chrome):

<input  type="submit" name="update" value=" Apply " 
    style="position: absolute; height: 0px; width: 0px; border: none; padding: 0px;"
    hidefocus="true" tabindex="-1"/>

Add above line as a first line in your code with appropriate value of name and value.

9
votes

Just set the hidden attribute to true:

<form name="loginBox" target="#here" method="post">
    <input name="username" type="text" /><br />
    <input name="password" type="password" />
    <input type="submit" hidden="true" />
</form>
7
votes

Instead of the hack you currently use to hide the button, it would be much simpler to set visibility: collapse; in the style attribute. However, I would still recommend using a bit of simple Javascript to submit the form. As far as I understand, support for such things is ubiquitous nowadays.

7
votes

The most elegant way of doing this is to keep the submit-button, but set it's border, padding and font-size to 0.

This will make the button dimensions 0x0.

<input type="submit" style="border:0; padding:0; font-size:0">

You can try this yourself, and by setting an outline to the element you will see a dot, which is the outside border "surrounding" the 0x0 px element.

No need for visibility:hidden, but if it makes you sleep at night, you can throw that in the mix as well.

JS Fiddle

6
votes

HTML5 solution

<input type="submit" hidden />
5
votes

IE doesn't allow pressing the ENTER key for form submission if the submit button is not visible, and the form has more than one field. Give it what it wants by providing a 1x1 pixel transparent image as a submit button. Of course it will take up a pixel of the layout, but look what you have to do to hide it.

<input type="image" src="img/1x1trans.gif"/>
5
votes
<input type="submit" style="display:none;"/>

This works fine and it is the most explicit version of what you're trying to achieve.

Note that there is a difference between display:none and visibility:hidden for other form elements.

5
votes

I work with a bunch of UI frameworks. Many of them have a built-in class you can use to visually hide things.

Bootstrap

<input type="submit" class="sr-only" tabindex="-1">

Angular Material

<input type="submit" class="cdk-visually-hidden" tabindex="-1">

Brilliant minds who created these frameworks have defined these styles as follows:

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.cdk-visually-hidden {
    border: 0;
    clip: rect(0 0 0 0);
    height: 1px;
    margin: -1px;
    overflow: hidden;
    padding: 0;
    position: absolute;
    width: 1px;
    outline: 0;
    -webkit-appearance: none;
    -moz-appearance: none;
}
4
votes

This is my solution, tested in Chrome, Firefox 6 and IE7+:

.hidden{
    height: 1px;
    width: 1px;
    position: absolute;
    z-index: -100;
}
4
votes

the simplest way

<input type="submit" style="width:0px; height:0px; opacity:0;"/>
2
votes

For those who have problems with IE and for others too.

{
    float: left;
    width: 1px;
    height: 1px;
    background-color: transparent;
    border: none;
}
2
votes

You could try also this

<INPUT TYPE="image" SRC="0piximage.gif" HEIGHT="0" WIDTH="0" BORDER="0">

You could include an image with width/height = 0 px

2
votes
input.on('keypress', function(event) {
    if ( event.which === 13 ) {
        form.submit();
        return false;
    }
});
1
votes

I added it to a function on document ready. If there is no submit button on the form (all of my Jquery Dialog Forms don't have submit buttons), append it.

$(document).ready(function (){
    addHiddenSubmitButtonsSoICanHitEnter();
});
function addHiddenSubmitButtonsSoICanHitEnter(){
    var hiddenSubmit = "<input type='submit' style='position: absolute; left: -9999px; width: 1px; height: 1px;' tabindex='-1'/>";
    $("form").each(function(i,el){
        if($(this).find(":submit").length==0)
            $(this).append(hiddenSubmit);
    });
}
0
votes

Here is the code that worked to me sure it will help you

<form name="loginBox" target="#here" method="post">
  <input name="username" type="text" /><br />
  <input name="password" type="password" />
  <input type="submit" />
</form>

<script type="text/javascript">
  $(function () {
    $("form").each(function () {
      $(this)
        .find("input")
        .keypress(function (e) {
          if (e.which == 10 || e.which == 13) {
            this.form.submit();
          }
        });
      $(this).find("input[type=submit]").hide();
    });
  });
</script>