Anchor points have different positions on different browsers - html

I am trying to create a link that goes directly to a certain section of a different page. Here is what I'm doing.
I create an anchor point using the name attribute:
<a name="fish"></a>
<p>some content....</p>
I create a link with the # added to the end
"http://example.com#fish"
***note I have also tried the id method instead of name which still gives me the same issue.
example: <div id="fish"></div>
The functionality works fine and it takes me to the specific part on the page, the only issue is that it looks different on different browsers. What firefox displays is about 5 inches higher than what chrome displays.

It's probably because the a tag is taking up some space.
Easiest solution, use an id instead.
<p id="fish">some content....</p>
Make sure there's enough content below so it can scroll

Most browsers have the same css default value for common html elements, however it is possible that some elements have different attribute values for padding and margin.
One way to avoid these differences is explicitly applying the values in the css statements.
p {margin: 10px 0px}
If you do not want to do this, I recommend you put link exactly in the position where text is located.
<p><a name="fish"></a>some content....</p>
You can locate the link anywhere since the anchor element will not be visible in the viewport

Related

Applying styles to only selected element, without affecting children elements

This is fairly simple, so I'm sure I'm just missing something obvious.
Say I have this example code:
<main>
<header>Header</header>
<section>
Content
</section>
<section>
Content
</section>
<section>
Content
</section>
</main>
And initial CSS of:
main{text-align:center;}
section{display:inline-block;width:33%;}
So I have three columns taking up more or less a third of the page each. Now, because of the way the code is written, there will be white space on the page. My preferred method of dealing with this is to set *{font-size:small}, and then add body>main{font-size:0;}.
Of course, thats fine on a simple page, where the font is the same. However, with different sized fonts and header tags here and there, this doesn't work well.
I think I just misunderstood what it is that the > selector does, but what I'm trying to look for is a selector that styles an element, without applying said style to children elements. In this case, I want to style my main element, but I don't want the style affecting the header or section elements.
What is the right way to do this?
And before anyone suggests it, no, I do not wish to use the other methods for removing white space (HTML comments, moving the final part of the closing tag onto the next line, etc.), as they look ugly and I prefer my code to look as presentable as my page.
First off: I'm not exactly sure if this works and not able to thoroughly test right now. This should have been a comment but I'm lacking the reputation to do so. sorry.
The problem is that the font size is one of the properties that is inheritet from it's parent and values like "small" don't set absolute sizes, but relative to the inherited size. so I would try to reset the size right after your main layer, using an absolute value instead of a relative one
body>main>*{font-size:18px;}
The important part is obviously not using a relative size, however, I have no idea how this holds up to user-specified default font-sizes. also, you would have to ensure that any text that has a non-medium font-size (so in your case any and all text) is at the very least a grandchild of main since the font-size for all direct children will be overwritten.
hope this will help you; bw

Highlight arbitrary elements in html

I'm developing a desktop software application which looks for errors in web pages and can highlight them in the browser. Highlighted areas are somewhat arbitrary. They could be one word in a p tag, an entire a tag or an img.
In the past I've done this by rewriting the html and adding styled span tags around the highlighted area. The downside is that quite often the highlights can be obscured. For example where in image is in a div exactly its size with no overflow, any applied border, background etc. will be obscured.
What's the best way to approach this? Are there any good examples of this being done in popular software / webapps?
Limitations: I can't use JS (files are local and browsers often block this). I can however user the latest standards. The output doesn't have to validate, as long as it works on common modern browsers.
Since background colors and borders can't be used, I think you'll need to place something on top of the offending element or text. Perhaps you can use an absolute or fixed position <div> element with a partially transparent background.
Of course, this could get tricky with getting the coordinates. But you might be able to use the same thing you used to do with the span and add some dummy elements within it to trick it into thinking that 0,0 is right where your span element is.

Which elements can be safely made contenteditable?

I've been working with contenteditable recently within a HTML5 page and encountering bugs when using it with certain elements, and I'd like to know where and how I can actually safely use it.
I've discovered that making a span element contenteditable results in some buggy behaviour in both Firefox1 and Chrome2. However, making a div or section contenteditable appears completely safe3.
A guideline a couple of people have mentioned is that only block-level elements should be made contenteditable. However, the Mozilla Developer Network lists the heading elements h1 through to h6 as block-level elements, and making a heading element contenteditable is buggy in Firefox4 and can crash the page in Chrome5.
I'd like to be able to use more than just divs and sections, but I'm not clear on what elements I can actually safely make contenteditable. By safely, I mean that using the element under normal conditions, I should be able to perform normal editing tasks without it doing unexpected or buggy things. I should be able to write in it, delete content, cut, copy, paste, and move my text cursor about and highlight text without unexpected or strange behaviour.
So, which elements can I really make contenteditable safely? Is there a specific category? Are there certain criteria the safely-contenteditable element must match?
Bug notes:
Firefox 21 w/ span: Element loses focus if the text cursor is brought to the beginning or end of the element, but not if it got there by deleting content. Highlighting part of the element, cutting and then pasting will split the element in two at that point then insert a blank element between the two parts - without actually putting the text you were trying to paste anywhere.
Chrome 27 w/ span: If the span covers multiple lines e.g. by being wordwrapped, cutting and pasting content will often insert a linebreak after the pasted content.
Unless you make the div display:inline, in which case it can still lose focus as in 1, but apparently only if you bring the text cursor to the end. I don't consider this "normal" usage of the element though.
Firefox 21 w/ heading: Selecting part of the content then cutting and pasting will, similarly to 1, split the heading element in half at that point, and insert a third heading element between the two halves. It will, at least, have your pasted content inside it, but now you have three heading elements where there was originally one.
Chrome 27 w/ heading: Select some content and cut and paste. The page crashes. You get an "Aw snap!" message. That's it.
Demo code
Here's a demo for reproducing the above. It's pretty simple, though at the moment the only thing it isn't reproducing is the lose-focus bug.
[contenteditable=true] {
border: 1px dotted #999;
}
<article style="width: 100px">
<h1 contenteditable="true">Heading</h1>
<p>
<strong>Some adjacent content</strong>
<span contenteditable="true">Span! This is long enough it will spread over multiple lines.</span>
</p>
<div style="display: inline" contenteditable="true">An inline div also with multiple lines.</div>
</article>
In my opinion, I'd say div is the safest bet across the board. Any element you wish to truly edit (be it a span, header, etc), you can place inside the div and edit as if it were just that element. Also, to account for the display:inline issue you mentioned, you could always use float:left or float:right on your editable div to give it an "inline feel" without having it actually be inline.
Hope that helps!
Since this is an evolving feature with, apparent, low priority from the browser vendors support has been sketchy and regressions not uncommon. The current state of affairs is evolving, so check the Googles, CanIUse etc and make sure support is there for your sites visitors, everything else is moot ...
Support in Firefox seems to be solid, at least for some elements, now https://developer.mozilla.org/en-US/docs/Web/Guide/HTML/Editable_content
It works well in Chrome as well as far as my testing goes.
And CanIUse looks good: http://caniuse.com/#feat=contenteditable
There are a number of different bugs related to the feature in the different browsers though, but for simple use cases it should be ok now, as of August 2016.

Anchor tag jumping to hash not working

I've read various posts on this subject and think I understand the usual points of failure. I find that my two product thumbnail images, under the "This Click'n'Pick Set Consists Of The Following 2 Products" heading, are clickable, but do not take me to the named <div> element further down the page. Instead, they cause navigation to http://www.premierrange.co.uk/#bundle_product_anchor_448, for example. I see this both in Chrome (18.0.1025.33 beta) and Firefox (10.0.1) on Linux.
http://www.premierrange.co.uk/index.php?main_page=clicknpick&groups_id=2&chosen_0=243&chosen_1=448
So for example there's an anchor targeting '#bundle_product_anchor_243':
<a href="#bundle_product_anchor_243" title="Click here to jump to the 70cm Truly Curved Black Glass Curved Cooker Hood H77-7B">
<img src="http://www.premierrange.co.uk/thumbnailer.php?filename=images/H77-700.jpg&height=100" alt="70cm Truly Curved Black Glass Curved Cooker Hood H77-7B">
</a>
This targets the <div> further down the page:
<div class="productSeparator" id="bundle_product_anchor_243">
<h1>Product number 1 in this bundle of 2 products</h1>
</div>
I've also tried making the <h1> inside the target <div> be the target instead, in case the target must be an inline element rather than a div, but nothing seems to work.
The <div> containing the badly behaving <a> is completely closed by the time the <div> containing the target element appears in the document. I don't think there's a problem with the target element not being defined at the point in time the <a> is parsed by the browser.
Manually adding "#bundle_product_anchor_448" to the URL does work.
I am aware that the page fails HTML validation on a large number of points, due to a large number of factors that I'm not going to be able to address easily. I'd have thought this basic 'jump to a named element' functionality should work regardless. The page is completely functional other than this little navigation quirk.
Anyone got any clues?
Try removing <base href="http://www.premierrange.co.uk/"></base> from the page header.
The <base> tag specifies the base URL or target for all relative URLs (the ones that don't say http://www.example.com/...) on your page. Without it, your link should function as intended though you may have to fix other links to accommodate this change.
While using the <base> tag in your application, the best approach would be to just use absolute URL's before the hash, with the absolute URL pointing to the same page you're in.
So, assuming that you are on the 'http://example.com/products/curved-glass' page, instead of
<a href="#bundle_product_anchor_243">...
you would need to include the absolute current URL before the hash:
<a href="http://example.com/products/curved-glass#bundle_product_anchor_243">...
Finding out the current URL is a trivial task in most of the environments, and this method also avoids the removal of your <base> tag, action which might have negative consequences in other areas of your application.

How to make select inputs look the same in all browsers on all platforms?

i'm solving a problem to make select inputs look the same in all browsers (Chrome and Safari on Mac renders them differently) how to do that ?
The ONLY way to make them look the same right now would be to hide the original inputs, and replace them with appropriately styled html equivalents (of god forbig Flash objects), which would act as proxies, passing the functionality over to the hidden inputs.
That may be automated with JavaScript. But that would be WRONG. You are not supposed to force a different look on to OS styled elements of the webpage. It conflicts with a lot of usability and accessibility practices.
So, the only way is to make your design flexible enough to support differently looking control elements on a web page, and also use different stylesets for different browsers, to ease the adjustment of the styles (at the moment there are no inputs that would look and act the same on all browsers with the same style rules applied).
Unfortunately, life just kinda sucks on this one. Just wait till you need to style a file input...now that's some fun!
if you dont mind using js you can simply design your own look (a jpg img it can even be the same img as the original select element or if you wish you can model parts of it in css)
Then place a div on top of that image that div will contain the text which select element would usually contain
<div id="selectTxt" >
then set another div on top of that with the select element inside it.
<div id="transparentSelect" class="transparent">
<select id="selectCar" name="selectCar">
<option>Volvo</option>
<option>Saab</option>
<option>Mercedes</option>
<option>Audi</option>
</select>
</div>
Now the trick is to set the select element opacity to zero
you can do this by adding by adding a class transparent
and then applying the class to the div
.transparent
{
filter:alpha(opacity=0);
-moz-opacity: 0;
opacity: 0;
}
now the element is hidden but when you click on it the list will still show up.
So the list will always look like the default list in the browser
now use js to extract the select value every time you click on the select
and set the inner html of selectTxt div to its value.
This way you get the text of the select on top of an image you want
you can make the image animated with the hover effect in css or with js
I also make a select that looks the same in all browsers but it doesnt work when you click directly on the arrow...
so its an inferior version but if you wish to look at it here it is
http://jsfiddle.net/fiddlerOnDaRoof/LM73V/
it also lacks the arrow image but you can print screen that from your browser
good luck
You should apply a CSS to reset the styles (not just for the inputs, this is a highly recommended practice for all element so that your page looks almost the same in all browsers) there are many, just google a little, for example this one, and then apply your desired styles (border color and width, background, etc...) take a look at this tutorial on how to style form elements