xhtml

Placeholder style

There is a form How to change the color of the placeholder attribute

Vk wiki markup

Please tell me where you can get the wiki markup for the group together with the psd.

What is meant by a namespace in the HTML5 specification?

Excerpt from the specification: In HTML documents, elements in the HTML namespace may have an xmlns attribute specified ... mespace can have an attribute" mean? xmlns"? In the html namespace, where is this? And how does this attribute work in html5?

Is it true that new tags in html5 are not valid when applied to xhtml?

That is, for the sake of a few tags, a person who has been working in xhtml for a long time should completely switch to html5 ... sting to know your opinion on this matter. The question is primitive, but I haven't found a concrete answer anywhere. Thanks.

Prohibit duplicate registration

Hello, guys. I have a program that works with User Registration. In this program I would like to implement a function that pr ... f any file is missing, please please let me know that I will add immediately. I am grateful for any feedback or suggestions.

What is XHTML and when should it be used?

What I know is that XHTML needs to be valid XML. This implies, for example, that all tags need to be closed. For example: Errado: <br> Certo: <br/> But how useful is this? What's he for? When should it be used?

What is it for and what is the difference of using inside a tag?

What is it for, or what is the difference between using the script content with this CDATA or not? <script type="text/javascript"> //<![CDATA ... //]] </script>

Two Different Horizontal Menus

I am creating two horizontal menus on the same page with different definitions and so I used a Class in each of them. I am n ... t;/li> <li class="nav"><a href="index.html#blogue" title="Navegar para ao blogue">BLOGUE</a></li>

How to map an image using Google Areas and coordinates.Cloud.Vision.Api

Hello, friends! I'm trying to map an image, using the html5 tag " Area "that works with polygons, I want to map a rectangle ... ;</map><img src=”imagem.jpg” usemap=”#shape” /> From what I saw "Area" only accepts 4 coordinates and now.

What is the difference between o and a class?

While studying XHTML, I understood that <span> is an inline element. A class will be a block element. But when to use one and the other? In addition to them, when to use some elements knowing that there are others similar.

Prevent browser autocomplete [duplicate]

this question already has answers here : ... tion. See I use JSF + primefaces components, and even with autocomplete off in inputText, it seems not to serve as nothing!

HTML-why use, or not use, "/ > " to close tags without content? [duplicate]

this question already has answers here : ... rializecss.com/getting-started.html reference W3C Void Elements: https://www.w3.org/TR/html5/syntax.html#void-elements

It is good practice not to close the file.php com > after an XHR call made from a file.html?

Should I close the PHP tag <?php with the ?>? A friend with more experience recommended me not to close saying it was a ... ing practice", I never understood why, but I have followed the recommendation ever since. Is this really good practice? Why?