Develop Reference

prevent tabbing on the icon when filling some input-fields in blazor

I'm working on a project where you can insert your working hours, in which you have to insert start- & end times. But after you put in the start time and tab to go on, it does focus first on the icon, which comes from the
<input type="time">
I want that the tabbing only hits the input area, not the icon next to it.
This is the current state:
example input field:
<div class="text-section">
<label for="startTime"
class="text label without-margin">#((MarkupString)loc["StartTime"].ToString())</label>
<div class="property-container-three">
<div class="property-icon">
<div class="icon solid start" tabIndex="-2">#Icons.Startzeit</div>
</div>
<input class="input-text nomargin centerInputContentVertical"
type="time"
id="startTime"
#ref="startTimeElement"
#bind-value="blazorStartTime"
#onblur="HandleStartTimeSet">
</div>
</div>
I already tried everything with tabindex:"-1", it just makes no difference. Also I'm just able to modify this icon due css, which goes like:
input[type="text"], input[type="date"], input[type="number"], input[type="search"], input[type="time"], input[type="datetime"], input[type="password"], [type="email"], select, textarea {
padding: 8px 12px;
height: 38px;
width: 100%;
}
I do not have any more ideas or approaches...

After some googling I found, it is a known issue with Edge... see this answer, it states that Microsoft do not plan to fix it; but the link they mention is dead.
I can only replicate this bug on Edge. And it seems MS won't solve it...
You can target it with CSS: idea from here
input[type="time"]::-webkit-calendar-picker-indicator` {
display: none:
}
Perhaps setting display: none will be enough and maybe adjusting padding/margin for it too?
Unfortunately, there is currently no stable CSS way to change the tab-index; and currently no way to change the HTML attributes.
The current CSS equivalent for tab-index is -moz-user-focus but this is non-standard and the documentation stresses that you "should not use this".
Similar things exist for grabbing the pseudo element with JavaScript like this question, but again this is for computedStyles which is back to the CSS issue again.
Maybe in future this sort of feature will be introduced and there will be a working answer for it....

Problems with the last chrome update - CSS

so, i'm an intern on my company, and need to deal with some stuff that i'm not 100%.
The thing is, the last google chrome update crashed some css in my java web app. We do work with a table, based on scrum. Basicly a taskboard, where you can set a task, remove it, set is as "to do, doing and done". But, since 12/12 +/- your task was missing from the taskboard. We didn't knew what was going on at the begining, but after a little research we found out that the style of the 'height:100%' of tr td was crashing, and making everything desapear. It works fine in firefox and also in IE. when we did remove the height, the tasks appeared. But the thing is, without the height:100% the jquery droppable ui, that we use to move the tasks inside the table was set to the height automatically, even when it is with height 100%.
We don't want to set a minimal height, because it was supposed to work pretty fine.
Here is the code, it's a little big to text in here, so i typed it on jsfiddle.
https://jsfiddle.net/rychardgoltara/bvw1hkxg/
<tr data-bind="attr:{id: sequencial}" id="2093" class ="selectable">
<td class ="historia" style="height:1px">
<div class="colapsada" style="display:none;">
</div>
<div class="expandida">
<div class="historiaLayout">
<span id=""></span>
</div>
</div>
</td>
<!-- ko foreach: {data: $root.fases, as : 'fase'} -->
<td data-bind="css : 'fase-' + id" class="fase-7">
<div class="colapsada"></div>
<div class="expandida tarefaExpandida">
<div class="nomeFase fase">
<span class="tamanhoVariavel sh-tooltip" data-bind="text: titulo, attr: {'aria-label': titulo}" aria-label="A Fazer">A Fazer</span>
}
.tabelaQT tbody tr td {
border-right: 1px #ccc solid;
height: 100%;
}
.tarefaExpandida {
margin: 5px;
overflow: auto;
height: 100%;
One of our solutions was setting the height:100% on tr td and also setting it to height:-webkit-calc(0px). So it can work fine on chrome without affecting other browsers. But the thing is, this solution is the real solution? Am i missing something? And if this is the solution, why is it? I don't know how to explain the solution to my boss. Here is a pic of what is looks like, and what should looks like.
https://imgur.com/a/DXthL

Is there an equivalent to the "alt" attribute for div elements?

Screenreaders will read whatever string is set to the "alt" attribute. The use of this attribute is specifically for image tags.
If I have a div like so:
<div id=myCoolDiv tabindex="0"> 2 <div>
Is there a way to have a screen reader pickup an attribute to read a string the same way an alt tag is used?
So for the div listed below, the screen reader will say ie: "shopping cart items 2"?
I tried using aria-label but the screenreader won't pick it up:
<div id=myCoolDiv tabindex="0" aria-label="shopping cart items"> 2 <div>

You can just put a title tag in the div which will do the same as an alt tag like so:
<div title="I AM HELLO WORLD">HELLO WORLD</div>
"I AM HELLO WORLD" will be printed once you move your cursor around it on a browser

There are two ways (which can be combined) to have screen reader to read alternative text:
Anything with ARIA role img can (MUST) have alt attribute. See WAI-ARIA img role.
<div role="img" alt="heart">
♥︎
</div>
UPDATE: In 2017 the WAI-ARIA document was changed and the following text does not apply anymore. See comments below.
However this should be used only in case the element really represent an image (e.g. the heart unicode character).
If an element contain actual text, that just need different reading, you should set ARIA role to text and add aria-label with whatever you want to be read by the screen reader. See WAI-ARIA text role.
<div role="text" aria-label="Rating: 60%">
Rating: ★★★☆☆︎
</div>
Do not mismatch it with aria-labeledby which should contain ID of an related element.
You can combine the previous two cases into one using two ARIA roles and adding both alt and aria-label:
<div role="img text" alt="heart" aria-label="heart">
♥︎
</div>
When more ARIA roles are defined, browser should use the first one that is supported and process the element with that role.
One last important thing is that you must set page type to HTML5 (which support ARIA by design).
<!DOCTYPE html>
Using HTML4 or XHTML requires special DTD to enable ARIA support.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML+ARIA 1.0//EN"
"http://www.w3.org/WAI/ARIA/schemata/xhtml-aria-1.dtd">

Try role="listitem" or role="group" and aria-labelledby="shopping cart items". See Example 1. The 2 is text content which should be read by screen reader already with the attribute read as context to the content. Refer to this section.
UPDATE 2
Add aria-readonly=true role=textbox if you use an input. If there are doubts whether to use aria-label or aria-labelledby, read this article. In the documentation for JAWS and testing it myself supports the fact that aria-label is ignored. Furthermore, semantics are very important when accessibility is your concern. Using a div when you could use an input is not semantically sound and like I said before, JAWS would accept a form element more readily than a div. I assume that this "shopping cart" is a form or part of a form, and if you don't like it's borders, input {border: 0 none transparent} or use <output>* which would be A+ as far as semantics are concerned.
Sorry, #RadekPech reminded me; I forgot to add that using aria-labelledby needs visible text and that the text needs an id which is also listed as the value(s) of aria-labelledby. If you don't want text because of aesthetics, use color: transparent, line-height: 0, or color:<same as background>. That should satisfy visibility as far as the DOM is concerned* and still be invisible to the naked eye. Keep in mind these measures are because JAWS ignores aria-label.
*untested
EXAMPLE 3
<span id="shopping">Shopping</span>
<span id="cart">Cart</span>
<span id="items">Items</span>
<input id='cart' tabindex="0" aria-readonly=true readonly role="textbox" aria-labelledby="shopping cart items" value='2'>
UPDATE 1
For JAWS, you probably have to configure it a little:
Click the Utilities menu item.
Then Settings Center.
Speech and Sounds Schemes
Modiy Scheme...
HTML Tab
In this particular dialog box, you can add specific attributes and what is said when an element is tabbed to. JAWS will respond to form elements easier because they can trigger the focus event. You'll have an easier time doing Example 2 instead:
EXAMPLE 1
<div id=myCoolDiv tabindex="0" role="listitem" aria-labelledby="shopping cart items"> 2 <div>
EXAMPLE 2
<input id='semantic' tabindex="0" role="listitem" aria-labelledby="shopping cart items" value='2' readonly>

In case you use Bootstrap Framework there is a quick and easy solution. You should use sr-only or sr-only sr-only-focusable Bootstrap's CSS classes in a span element where your screen-reader-only text will be written.
Check the following example, a span element with class glyphicon glyphicon-shopping-cart is also used as cart icon.
<div id="myCoolDiv">
<h5>
<span class="glyphicon glyphicon-shopping-cart"></span> 2
<span class="sr-only sr-only-focusable" tabindex="0">shopping cart items</span>
</h5>
<div>
Screen Reader Output: "two shopping cart items"
provided by Fangs Screen Reader Emulator Addon for Firefox
You can find the above working example in this: Fiddle
As suggested by Oriol, in case you don't use Bootstrap Framework then simply add the following in your CSS file.
.sr-only {
position: absolute;
width: 1px;
height: 1px;
padding: 0;
margin: -1px;
overflow: hidden;
clip: rect(0, 0, 0, 0);
border: 0;
}
.sr-only-focusable:active,
.sr-only-focusable:focus {
position: static;
width: auto;
height: auto;
margin: 0;
overflow: visible;
clip: auto;
}

According to the text alternative computation algorithm of the W3C and the
Accessible Name and Description: Computation and API Mappings 1.1 you definitely should use aria-label.
That being said, it does not work with Jaws. Text alternative is only computed for elements having an ARIA role.
The remaining option is to use a link that will go to your cart page, using both title and aria-label to satisfy anyone:
2
You can also use a transparent 1 pixel option:
2 <img src="pixel.png" height="1" width="1" alt="shopping cart items" />

No, there is no equivalent to an alt attribute for <div> elements.
For what you are trying to do, an ARIA-based solution is overkill. Not only are you bumping into screen reader compatibility problems, you are applying ARIA attributes where they are not needed (and arguably do not belong if on something like a <div>).
Instead, consider using an off-screen technique (such as this one from The Paciello Group or this one from WebAIM). Content hidden using this technique will still be read by screen readers but will be visually hidden.
From reading your question, I think this is what you are after.
I made a pen demonstrating this technique. It may be easier to test in the full-page version.
Edit: Added HTML and CSS from the example, but please note that both the specs and browser / assistive technology support change over time, so if you are reading this in a year you should continue to use the links above to verify this CSS is still the current best practice.
HTML
<div tabindex="0">
<span class="offscreen">Items in shopping cart: </span>2
</div>
CSS
.offscreen {
position: absolute;
clip: rect(1px 1px 1px 1px);
/* for Internet Explorer */
clip: rect(1px, 1px, 1px, 1px);
padding: 0;
border: 0;
height: 1px;
width: 1px;
overflow: hidden;
}

Accessibility (Screen readers) can be achieved through role and aria-label tags on div. This can be very useful while using svg.
<div role="img" aria-label="I can speak the text">
<svg>...</svg>
</div>

Try:
HTML
<div id=myCoolDiv tabindex="0"><span class="aria-hidden">shopping cart items</span>2<div>
CSS
.aria-hidden {
position: absolute;
left: -100000px;
}
This will announce the text inside the span. And the Parent div will not lose visual focus. Aria-hidden class will hide the span from the visible screen area but will read it as its inside the div that has focus.

You can create a class such as screen-reader-text with the following css:
.screen-reader-text {
clip: rect(1px, 1px, 1px, 1px);
height: 1px;
width: 1px;
overflow: hidden;
position: absolute !important;
}
Then, in your code, you can just add a <span> with the screenreader text as so:
<div>
I am a div!
<span class="screen-reader-text">This is my screen reader text</span>
</div>
See an example over here: https://jsfiddle.net/zj1zuk9y/
(Source: http://www.coolfields.co.uk/2016/05/text-for-screen-readers-only-updated/)

Use an image inside the div that has the label as its alt attribute. That way, those without screen readers just see the number and an image, whereas those with readers will hear the whole sentence:
<div>
<img src="http://tny.im/57j" alt="Shopping cart items" />
2
</div>
Seen as:
2
Read as: "Shopping cart items: 2"
The alt attribute exists for images because there is no way to "read aloud" the content of the image, so the provided text is used instead. But for the div, it already contains text and images. Therefore, if you want it to be read by a screen-reader, you need to include the text and alt text in the content of the div.

Layering Images & Click to Choose Using Javascript

So I'm making a gallery of fabrics and backgrounds for letters for a fraternity/sorority store in my college's town. If you don't know what I'm talking about, this is a fabric letter. You can see how it has a white outline (background) and a red inside (foreground). WELL, I want to make it so you can change both the foreground and background, simply by clicking it's similar image.
This is what I have so far
<script type="text/javascript">// <![CDATA[
function changeImage(filename)
{
document.mainimage.src = filename;
}// ]]></script>
with these for each fabrics:
<a href="javascript:changeImage('/wp-content/themes/collegiateconnectionbg/images/fabrics/foregrounds/37.jpg')">
<img src="/wp-content/themes/collegiateconnectionbg/images/fabrics/foregrounds/37.jpg"
alt="" width="100px" height="50px" /></a>
I really like how this works, but it's only good for one layer. Is there anyway I can add a layer below it, but still make it show at the top of the page? I know I'll have to use photoshop and transparency for both options, thats no problem, but I wanted to make sure I can do this before I start creating 600+ images.
I know I can play with z-index and css, but since I'm using wordpress the one example I read about here wasn't working or I didn't completely understand it, and messed up my entire page.
Also here's my tester webpage to see the current code in work. (if you click the navy&white stars image, you can see a very rough makeshift "A")
Thanks in advance!

I think I've got a solution for you.
Live Demo: http://jsfiddle.net/hM6dj/4/
More or less, you just need to create some images of the letters and leave their insides transparent.
Example
You'll notice that the area around the 'A' is white while the area within the lines of the 'A' is transparent.
Code
Then all you need to do is place this image in front of another image. The image in the background will bleed through the transparent image on top resulting in an 'A' with a pattern.
NOTE: I used data urls for the foreground letter so I wouldn't have to host the images anywhere. You can read about that here.
HTML
<div class='container'>
<div class='foreground foreground-Black'> </div>
<div class='background background-Cow'> </div>
</div>
<h2>Foreground Options</h2>
<input type='button' class='btnforeground' data-class='foreground-Black' value="Black" />
<input type='button' class='btnforeground' data-class='foreground-Red' value="Red" />
<input type='button' class='btnforeground' data-class='foreground-Green' value="Green" />
<h2>Background Options</h2>
<input type='button' class='btnbackground' data-class='background-Cow' value="Cow" />
<input type='button' class='btnbackground' data-class='background-Stars' value="Stars" />
<input type='button' class='btnbackground' data-class='background-Dots' value="Dots" />
​
JS
$('input[type="button"].btnforeground').click(function(){
$('div.container > div.foreground').removeClass().addClass('foreground').addClass($(this).attr('data-class'));
});
$('input[type="button"].btnbackground').click(function(){
$('div.container > div.background').removeClass().addClass('background').addClass($(this).attr('data-class'));
});
​
CSS
.container{
position:relative;
width: 200px;
height: 200px;
}
.foreground, .background{
width: 200px;
height: 200px;
background-repeat: no-repeat;
position:absolute;
z-index:100;
}
.background{
background-repeat:repeat;
z-index:50;
}
.background-Cow{
background-image:
url(http://www.collegiateconnectionbg.com/wp-content/themes/collegiateconnectionbg/images/fabrics/foregrounds/424.jpg);
}
.background-Stars{
background-image:
url(http://www.collegiateconnectionbg.com/wp-content/themes/collegiateconnectionbg/images/fabrics/foregrounds/48.jpg);
}
.background-Dots{
background-image:
url(http://www.collegiateconnectionbg.com/wp-content/themes/collegiateconnectionbg/images/fabrics/foregrounds/521.jpg);
}
/* Omitted due to StackOverflow character restrictions.
.foreground-Black{
background-image: url();
}
.foreground-Green{
background-image: url();
}
.foreground-Red{
background-image: url();
}
*/
​
EDIT
Using Google Chrome's Developer tools, it looks like you have some HTML intermixed with your JavaScript (notice the Paragraph Tags <p>, </p>).
Also I would wrap the jQuery events in a ready function (The JS Fiddle did this automatically so it wasn't obvious from the code example).
JS
$(function(){
$('input[type="button"].btnforeground').click(function(){
$('div.container > div.foreground').removeClass().addClass('foreground').addClass($(this).attr('data-class'));
});
$('input[type="button"].btnbackground').click(function(){
$('div.container > div.background').removeClass().addClass('background').addClass($(this).attr('data-class'));
});
});
​
EDIT2
A few things.
Your classes:
.foreground
.background
.foreground-Black
.foreground-Cow
etc...
have almost none of the properties set from my example. You should be able to take the css verbatim from the jsfiddle I provided.
You've named the container the class .viewer, but are referencing .container in your JavaScript. These elements must match for the JavaScript to be able to find the appropriate html element to update.

Google PlusOne button has some bottom margin

I'd like to know if the issue I see is just for my site or if this is a known issue.
I have some social widgets that align pretty well, but for some reason the PlusOne is not aligned correctly.
I used Firebug to compare it with the Facebook Like widget, and according to the CSS, they are both exactly the same height and neither have margins or padding. Their css looks identical.
<div>
<fb:like layout="button_count" show_faces="false" width="90" action="like" font="verdana" colorscheme="light"></fb:like>
<g:plusone size="medium"></g:plusone>
<script type="text/javascript" src="http://w.sharethis.com/button/sharethis.js#publisher=d9550e2f-f25a-4e2e-ae45-7a51cf7e3d46&type=website&buttonText=Share%20item!&embeds=true&style=rotate"></script>
<font face='Verdana, Arial, Helvetica, sans-serif' size='1'> Email item</font>
</div>
Actually I have a link where the same thing i happening: http://news.makemeheal.com/celebrity-plastic-surgery/jennifer-aniston-weighs-on-prince-williams-hair-loss/ (if necessary, reduce your window size so Fbook and G+ are on the same line)

Use this:
<span style="position:relative; top:3px">
<div class="g-plusone" data-size="small" data-annotation="none"></div>
</span>

Had same issue. I put the Google+ code in a <div> and used CSS to limit the max-height property of <div> to 70px and it worked.

Put a div (class=froogle) around the +1 button, float them all and then style as you want. It worked for me:
.facebook-like, .twitter-share-button, .froogle {
float: left;
margin-right: 10px;
}

You could try using relative positioning, e.g. add the following CSS to the G+ button:
position: relative;
top: 5px; /* Or whatever looks right */
Although, while it may fix your problem it doesn't exactly show the cause of the issue.