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Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Archive for the ‘HTML’ Category

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Dimensions – Chrome Web Store

Posted by jpluimers on 2020/10/13

[WayBack/Archive.is] Dimensions – Chrome Web Store: A tool for designers to measure screen dimensions

This extension measures the dimensions from your mouse pointer up/down and left/right until it hits a border. So if you want to measure distances between elements on a website this is perfect. It doesn’t really work with images because there the colors change a lot pixel to pixel.

# Images & HTML Elements

Measure between the following elements: images, input-fields, buttons, videos, gifs, text, icons. You can measure everything you see in the browser.

# Mockups

Your designer handed you mockups as PNGs or JPEGs? Just drop them into Chrome, activate Dimensions and start measuring.

# Keyboard Shortcut

You can start and stop dimensions with the ALT + D shortcut.

# Area Boundaries

Wanna get the radius of a circle? Is text standing in your way? Press Alt to measure the dimensions of a connected area.

–jeroen

Via:

Posted in Chrome, Chrome, Development, Google, HTML, Power User, Software Development, Web Browsers, Web Development | Leave a Comment »

Peeking under the hood of redesigned Gmail – Boris – Medium

Posted by jpluimers on 2020/06/25

From a while back, but still relevant as the speed of the GMail web-UI still has not improved.

[WayBack/Archive.is] Peeking under the hood of redesigned Gmail – Boris – Medium

Via:

–jeroen

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Posted in CSS, Development, GMail, Google, HTML, JavaScript/ECMAScript, Power User, Scripting, Software Development, Web Development | Leave a Comment »

CSS flex-box layout – Wikipedia

Posted by jpluimers on 2019/09/02

Being a back-end and library person by heart, I am always late in the web-UI game, so this is on my list of things to try: CSS flex-box layout – Wikipedia.

I saw it being used by [WayBack] markdownlint demo: Demo for markdownlint, a Node.js style checker and lint tool for Markdown/CommonMark files.

Some links that should me help further:

–jeroen

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Posted in CSS, Development, HTML, HTML5, Software Development, Web Development | Leave a Comment »

ls colour codes on OpenSuSE tumbleweed when accessed from Mac OS X ssh

Posted by jpluimers on 2019/06/07

`ls` colour codes

`ls` colour codes

I got confused as I thought red text would mean an error.

But they’re not: greenish yellow on a read background means error (a symbolic link to a place that’s no longer there).

It’s the output of https://github.com/gkotian/gautam_linux/blob/master/scripts/colours.sh as the one at

Actually the script is here https://raw.githubusercontent.com/gkotian/gautam_linux/master/scripts/colours.sh as the one at [WayBack] command line – What do the different colors mean in the terminal? – Ask Ubuntu failed with errors like this one:

-bash: *.xbm: bad substitution

The full script output is below.

Since various terminals have a different mapping from colours in the ANSI escape code colour table, I used the standard HTML colours using (which slightly differs from the Terminal.app screenshot on the right):

References:

Note that the shell on Mac OS X uses a different way of configuring colours CLICOLOR as described in [WayBack] settings – CLICOLOR and LS_COLORS in bash – Unix & Linux Stack Exchange. I might cover that another day.

Script output:

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Posted in *nix, *nix-tools, bash, CSS, Development, HTML, HTML5, Linux, openSuSE, Power User, Software Development, SuSE Linux, Tumbleweed, Web Development | Leave a Comment »

CDATA inside JavaScript or style section of HTML? They are for backward compatibility. Sometimes compatibility with ancient browsers.

Posted by jpluimers on 2019/01/23

As a back-end person, sometimes I wondered about CDATA in front-end HTML code was for, especially in JavaScript and CSS style elements.

[WayBack] HTML vs. XHTML – WHATWG Wiki explains how to be compatible with XHTML, HTML, XML based tools and older browsers:

The following code with escaping can ensure script and style elements will work in both XHTML and HTML, including older browsers.

In both cases, XML ignores the first comment and then uses the CDATA section to avoid the need for escaping special characters < and & within the rest of the contents (with subsequent JavaScript comments added within to ensure the HTML-oriented code is ignored by JavaScript).

In HTML, older browsers might display the content without the content being within a comment, so comments are used to hide this from them (while modern HTML browsers will run code inside the comments). The subsequent JavaScript comment is added to negate the text added for the sake of XHTML.

The <style> requires the /**/ comments since CSS does not support the single line ones.

   <!---->
       ...
   //-->

   <style type="text/css"><!--/*--><![CDATA[/*><!--*/
       ...
   /*]]>*/--></style>

If not concerned about much older browsers (from which one is hiding the HTML) one can use the simpler:

   //

   <style>/*<![CDATA[*/
   
   /*]]>*/</style>

Also note that the sequence “]]>” is not allowed within a CDATA section, so it cannot be used in true XHTML-embedded JavaScript without escaping.

–jeroen

via:

Posted in CSS, Development, HTML, HTML5, JavaScript/ECMAScript, Scripting, Software Development, Web Development | Leave a Comment »

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