How can I change an element’s class with JavaScript?

Modern HTML5 Techniques for changing classes Modern browsers have added classList which provides methods to make it easier to manipulate classes without needing a library: Unfortunately, these do not work in Internet Explorer prior to v10, though there is a shim to add support for it to IE8 and IE9, available from this page. It is, though, getting more and … Read more

Can’t fix: ‘og:image’ property should be explicitly provided, even if a value can be inferred from other tags

I have a website that triggers a warning when clicked through a link shared on facebook. The warning says: “Possible problem with this link We have detected that this link: http://www.sjap.online/ may be malicious. To keep your account and device secure, only follow links you trust.” I ran the facebook debug tool and I get … Read more

Error: The requested URL “[no URL]”, is invalid

I finally found some time to contact my webserver provider. I can see that the domain has been removed from the Akamai server. However, the CNAME which was pointing to Akamai server was causing the issue. I have removed the CNAME record. after about half an hour its back up. theres some display issues with … Read more

How to align content of a div to the bottom

Relative+absolute positioning is your best bet: But you may run into issues with that. When I tried it I had problems with dropdown menus appearing below the content. It’s just not pretty. Honestly, for vertical centering issues and, well, any vertical alignment issues with the items aren’t fixed height, it’s easier just to use tables. … Read more

How can I center a div within another div?

You need to set the width of the container (auto won’t work): The CSS reference by MDN explains it all. Check out these links: auto – CSS reference | MDN margin – CSS reference | MDN What is the meaning of auto value in a CSS property – Stack Overflow In action at jsFiddle.

What is the difference between
and

<section> means that the content inside is grouped (i.e. relates to a single theme), and should appear as an entry in an outline of the page. <div>, on the other hand, does not convey any meaning, aside from any found in its class, lang and title attributes. So no: using a <div> does not define a section in HTML. From the spec: <section> The <section> element … Read more