html - Read For Learn

Check if checkbox is checked with jQuery

IDs must be unique in your document, meaning that you shouldn’t do this: Instead, drop the ID, and then select them by name, or by a containing element: And now the jQuery:

Prevent line-break of span element

Put this in your CSS: Get more information here: http://www.w3.org/wiki/CSS/Properties/white-space white-space The white-space property declares how white space inside the element is handled. Values normal This value directs user agents to collapse sequences of white space, and break lines as necessary to fill line boxes. pre This value prevents user agents from collapsing sequences of white space. Lines are only … Read more

HTML Button : Navigate to Other Page – Different Approaches

I make a link. A link is a link. A link navigates to another page. That is what links are for and everybody understands that. So Method 3 is the only correct method in my book. I wouldn’t want my link to look like a button at all, and when I do, I still think … Read more

Is “ ” a replacement of ” “?

  is the character entity reference (meant to be easily parseable by humans).   is the numeric entity reference (meant to be easily parseable by machines). They are the same except for the fact that the latter does not need another lookup table to find its actual value. The lookup table is called a DTD, by the way. … Read more

forbidden 403 on image URLS

Looks like when the HTTP request header referrer is anything other than http://4chan.org, I get this issue. Ive simply added the below to the HTML page and its fixed the problem: Once your Angular app is loaded, you can also use Firefox Developer Console (Network Tab) modify image request (ie 403) and remove referrer header to … Read more

Floating div positioning

. I need a floating rectangle (100% width, 100px height) to appear exactly 20px above the bottom of a page. How can I do that? The code below shows the rectangle at the bottom of the browser window not the page – so if the page is taller than what can fit in the screen, … Read more

What is the purpose of the “role” attribute in HTML?

Most of the roles you see were defined as part of ARIA 1.0, and then later incorporated into HTML via supporting specs like HTML-AAM. Some of the new HTML5 elements (dialog, main, etc.) are even based on the original ARIA roles. http://www.w3.org/TR/wai-aria/ There are a few primary reasons to use roles in addition to your … Read more