Change New Google Recaptcha (v2) Width

问题

We've just started to implement the new google recaptcha as listed https://www.google.com/recaptcha/intro/index.html

However the new method seems to be contained within an iFrame rather than embedded into the page thus making applying CSS more difficult.

However we've got our form which is 400px wide so would like to have the recaptcha the same width.

Currently it looks like, however we'd like it the same with as the rest.

Does anybody know how to do this yet?

Thanks

回答1:

Here is a work around but not always a great one, depending on how much you scale it. Explanation can be found here: https://www.geekgoddess.com/how-to-resize-the-google-nocaptcha-recaptcha/

.g-recaptcha {
    transform:scale(0.77);
    transform-origin:0 0;
}

UPDATE: Google has added support for a smaller size via a parameter. Have a look at the docs - https://developers.google.com/recaptcha/docs/display#render_param

回答2:

For more compatibility:

  -webkit-transform: scale(0.77);
     -moz-transform: scale(0.77);
      -ms-transform: scale(0.77);
       -o-transform: scale(0.77);
          transform: scale(0.77);
   -webkit-transform-origin: 0 0;
      -moz-transform-origin: 0 0;
       -ms-transform-origin: 0 0;
        -o-transform-origin: 0 0;
           transform-origin: 0 0;

回答3:

No, currently you can not. It was only possible with the old recaptcha, but I'm sure you will be able to do that in the future.

I have no solution but a suggestion. I had the same problem, so I centered the recaptcha div (margin: 0 auto;display: table), I think it looks much better than a left-aligned div.

回答4:

A bit late but I've got an easy workaround:

Just add this code to your "g-recaptcha" class:

width: desired_width;

border-radius: 4px;
border-right: 1px solid #d8d8d8;
overflow: hidden;

回答5:

For the new version of noCaptcha Recaptcha the following works for me:

<div class="g-recaptcha"
data-sitekey="6LcVkQsTAAAAALqSUcqN1zvzOE8sZkOq2GMBE-RK"
style="transform:scale(0.7);transform-origin:0;-webkit-transform:scale(0.7);
transform:scale(0.7);-webkit-transform-origin:0 0;transform-origin:0 0;"></div>

Ref

回答6:

.g-recaptcha{
    -moz-transform:scale(1.1);
    -ms-transform:scale(1.1); 
    -o-transform:scale(1.1); 
    -moz-transform-origin:0; 
    -ms-transform-origin:0;
    -o-transform-origin:0;
    -webkit-transform:scale(1.1);
    transform:scale(1.1);
    -webkit-transform-origin:0 0;
    transform-origin:0;
    filter: progid:DXImageTransform.Microsoft.Matrix(M11=1.1,M12=0,M21=0,M22=1.1,SizingMethod='auto expand');
}

回答7:

I have this function in the document ready event so that the reCaptcha is dynamically sized. Anyone should be able to drop this in place and go.

function ScaleReCaptcha()
{
if (document.getElementsByClassName('g-recaptcha').length > 0)
{parentWidth = document.getElementsByClassName('g-recaptcha') [0].parentNode.clientWidth;
         childWidth = document.getElementsByClassName('g-recaptcha')[0].firstChild.clientWidth;
         scale = (parentWidth) / (childWidth);
         new_width = childWidth * scale;
         document.getElementsByClassName('g-recaptcha')[0].style.transform = 'scale(' + scale + ')';
         document.getElementsByClassName('g-recaptcha')[0].style.transformOrigin = '0 0';
     }
}

回答8:

This is my work around:

1) Add a wrapper div to the recaptcha div.

<div id="recaptcha-wrapper"><div class="g-recaptcha" data-sitekey="..."></div></div>

2) Add javascript/jquery code.

$(function(){
    // global variables
    captchaResized = false;
    captchaWidth = 304;
    captchaHeight = 78;
    captchaWrapper = $('#recaptcha-wrapper');
    captchaElements = $('#rc-imageselect, .g-recaptcha');

    resizeCaptcha();
    $(window).on('resize', function() {
        resizeCaptcha();
    });
});

function resizeCaptcha() {
    if (captchaWrapper.width() >= captchaWidth) {
        if (captchaResized) {
            captchaElements.css('transform', '').css('-webkit-transform', '').css('-ms-transform', '').css('-o-transform', '').css('transform-origin', '').css('-webkit-transform-origin', '').css('-ms-transform-origin', '').css('-o-transform-origin', '');
            captchaWrapper.height(captchaHeight);
            captchaResized = false;
        }
    } else {
        var scale = (1 - (captchaWidth - captchaWrapper.width()) * (0.05/15));
        captchaElements.css('transform', 'scale('+scale+')').css('-webkit-transform', 'scale('+scale+')').css('-ms-transform', 'scale('+scale+')').css('-o-transform', 'scale('+scale+')').css('transform-origin', '0 0').css('-webkit-transform-origin', '0 0').css('-ms-transform-origin', '0 0').css('-o-transform-origin', '0 0');
        captchaWrapper.height(captchaHeight * scale);
        if (captchaResized == false) captchaResized = true;
    }
}

3) Optional: add some styling if needed.

#recaptcha-wrapper { text-align:center; margin-bottom:15px; }

.g-recaptcha { display:inline-block; }

回答9:

Now, You can use below code (by google)
<div class="g-recaptcha" data-sitekey="<yours>" data-size="compact"></div>

回答10:

I have found following best ways to resize google recaptchas

Option 1: You can resize google ReCaptcha by using inline style.

A very first way for resizing google recapture by using inline style. Inline styles are CSS styles that are applied to one element, directly in the page's HTML, using the style attribute. Here is the example that shows you how you to style Google reCAPTCHA by using inline style.

<div class="g-recaptcha" style="transform: scale(0.77); -webkit-transform: scale(0.77); transform-origin: 0 0; -webkit-transform-origin: 0 0;" data-theme="light" data-sitekey="XXXXXXXXXXXXX"></div>

Option 2: By putting the following style in your page (Internal Style Sheet).

Secondly, you can put style for ReCaptcha into the page between and . An internal style sheet is a section on an HTML page that contains style definitions. Internal style sheets are defined by using the tag within the area of the document. Here is the example that shows you how you to style Google reCAPTCHA by using an external style sheet.

<style type="text/css">
.g-recaptcha{
transform:scale(0.77);
-webkit-transform:scale(0.77);
transform-origin:0 0;
-webkit-transform-origin:0 0;
}
</style>

Option 3: Resize google ReCaptcha by using an external stylesheet.

Create a separate file and give a name like style.css and add this file link in between your an element in your page. For ex. .

<style type="text/css">
.g-recaptcha{
transform:scale(0.77);
-webkit-transform:scale(0.77);
transform-origin:0 0;
-webkit-transform-origin:0 0;
}
</style>

回答11:

You can use parameter from reCaptcha. By default it uses normal value on data-size, You just have to use compact to fit this on small devices or some-kind small width layouts.

example:

<div class="g-recaptcha" data-size="compact"></div>

回答12:

It's been late, but just want to help others if still facing an issue. I found nice JS solution here : https://github.com/google/recaptcha/issues/61#issuecomment-376484690

Here is JavaScript code using jQuery to do so:

$(document).ready(function () {        
    var width = $('.g-recaptcha').parent().width();
    if (width < 302) {
        var scale = width / 302;
        $('.g-recaptcha').css('transform', 'scale(' + scale + ')');
        $('.g-recaptcha').css('-webkit-transform', 'scale(' + scale + ')');
        $('.g-recaptcha').css('transform-origin', '0 0');
        $('.g-recaptcha').css('-webkit-transform-origin', '0 0');
    }
});

IMP Note : It will support All Devices, above and bellow 320px width as well.

来源：https://stackoverflow.com/questions/27691411/change-new-google-recaptcha-v2-width

标签

css

iframe

width

recaptcha