我可以隐藏 HTML5的数字输入的螺旋框吗？

Is there a consistent way across browsers to hide the new spin boxes that some browsers (such as Chrome) render for HTML input of type number? I am looking for a CSS or JavaScript method to prevent the up/down arrows from appearing.

<input id="test" type="number">

This CSS effectively hides the spin-button for webkit browsers (have tested it in Chrome 7.0.517.44 and Safari Version 5.0.2 (6533.18.5)):

input::-webkit-outer-spin-button,
input::-webkit-inner-spin-button {
    /* display: none; <- Crashes Chrome on hover */
    -webkit-appearance: none;
    margin: 0; /* <-- Apparently some margin are still there even though it's hidden */
}

You can always use the inspector (webkit, possibly Firebug for Firefox) to look for matched CSS properties for the elements you are interested in, look for Pseudo elements. This image shows results for an input element type="number":

Not what you asked for, but I do this because of a focus bug in WebKit with spinboxes:

// temporary fix for focus bug with webkit input type=number ui
if (navigator.userAgent.indexOf("AppleWebKit") > -1 && navigator.userAgent.indexOf("Mobile") == -1)
{
    var els = document.querySelectorAll("input[type=number]");
    for (var el in els)
        el.type = "text";
}

It might give you an idea to help with what you need.

According to Apple’s user experience coding guide for mobile Safari, you can use the following to display a numeric keyboard in the iPhone browser:

<input type="text" pattern="[0-9]*" />

A pattern of \d* will also work.

Try using input type="tel" instead. It pops up a keyboard with numbers, and it doesn’t show spin boxes. It requires no JavaScript or CSS or plugins or anything else.

Firefox 29 currently adds support for number elements, so here's a snippet for hiding the spinners in webkit and moz based browsers:

input[type='number'] {
    -moz-appearance:textfield;
}

input::-webkit-outer-spin-button,
input::-webkit-inner-spin-button {
    -webkit-appearance: none;
}

<input id="test" type="number">

</div>

To make this work in Safari I found adding !important to the webkit adjustment forces the spin button to be hidden.

input::-webkit-outer-spin-button,
input::-webkit-inner-spin-button {
    /* display: none; <- Crashes Chrome on hover */
    -webkit-appearance: none !important;
    margin: 0; /* <-- Apparently some margin are still there even though it's hidden */
}

I am still having trouble working out a solution for Opera as well.

Short answer:

input[type="number"]::-webkit-outer-spin-button,
input[type="number"]::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}
input[type="number"] {
    -moz-appearance: textfield;
}

<input type="number" />

Longer answer:

To add to existing answer...

Firefox:

In current versions of Firefox, the (user agent) default value of the -moz-appearance property on these elements is number-input. Changing that to the value textfield effectively removes the spinner.

input[type="number"] {
    -moz-appearance: textfield;
}

In some cases, you may want the spinner to be hidden initially, and then appear on hover/focus. (This is currently the default behavior in Chrome). If so, you can use the following:

input[type="number"] {
    -moz-appearance: textfield;
}
input[type="number"]:hover,
input[type="number"]:focus {
    -moz-appearance: number-input;
}

<input type="number"/>

Chrome:

In current versions of Chrome, the (user agent) default value of the -webkit-appearance property on these elements is already textfield. In order to remove the spinner, the -webkit-appearance property's value needs to be changed to none on the ::-webkit-outer-spin-button/::-webkit-inner-spin-button pseudo classes (it is -webkit-appearance: inner-spin-button by default).

input[type="number"]::-webkit-outer-spin-button,
input[type="number"]::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

<input type="number" />

It's worth pointing out that margin: 0 is used to remove the margin in older versions of Chrome.

Currently, as of writing this, here is the default user agent styling on the 'inner-spin-button' pseudo class:

input::-webkit-inner-spin-button {
    -webkit-appearance: inner-spin-button;
    display: inline-block;
    cursor: default;
    flex: 0 0 auto;
    align-self: stretch;
    -webkit-user-select: none;
    opacity: 0;
    pointer-events: none;
    -webkit-user-modify: read-only;
}

</div>

I've encountered this problem with a input[type="datetime-local"], which is similar to this problem.

And I've found a way to overcome this kind of problems.

First, you must turn on chrome's shadow-root feature by "DevTools -> Settings -> General -> Elements -> Show user agent shadow DOM"

Then you can see all shadowed DOM elements, for example, for <input type="number">, the full element with shadowed DOM is:

<input type="number">
  <div id="text-field-container" pseudo="-webkit-textfield-decoration-container">
    <div id="editing-view-port">
      <div id="inner-editor"></div>
    </div>
    <div pseudo="-webkit-inner-spin-button" id="spin"></div>
  </div>
</input>

And according to these info, you can draft some CSS to hide unwanted elements, just as @Josh said.

</div>

On Firefox for Ubuntu, just using

    input[type='number'] {
    -moz-appearance:textfield;
}

did the trick for me.

Adding

input::-webkit-outer-spin-button,
input::-webkit-inner-spin-button {
    -webkit-appearance: none;
}

Would lead me to

Unknown pseudo-class or pseudo-element ‘-webkit-outer-spin-button’. Ruleset ignored due to bad selector.

everytime I tried. Same for the inner spin button.

input[type=number]::-webkit-inner-spin-button, 
input[type=number]::-webkit-outer-spin-button {
     -webkit-appearance: none;

<input id="test" type="number">

</div>

This is more better answer i would like to suggest on mouse over and without mouse over

input[type='number'] {
  appearance: textfield;
}
input[type='number']::-webkit-inner-spin-button,
input[type='number']::-webkit-outer-spin-button,
input[type='number']:hover::-webkit-inner-spin-button, 
input[type='number']:hover::-webkit-outer-spin-button {
-webkit-appearance: none; 
 margin: 0; }

Only add this css to remove spinner on input of number

/* For Firefox */

input[type='number'] {
    -moz-appearance:textfield;
}



/* Webkit browsers like Safari and Chrome */

input[type=number]::-webkit-inner-spin-button,
input[type=number]::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}