Html – Inline style to act as :hover in CSS

csshtml

I know that embedding CSS styles directly into the HTML tags they affect defeats much of the purpose of CSS, but sometimes it's useful for debugging purposes, as in:

<p style="font-size: 24px">asdf</p>

What's the syntax for embedding a rule like:

a:hover {text-decoration: underline;}

into the style attribute of an A tag? It's obviously not this…

<a href="foo" style="text-decoration: underline">bar</a>

…since that would apply all the time, as opposed to just during hover.

Best Answer

I'm afraid it can't be done, the pseudo-class selectors can't be set in-line, you'll have to do it on the page or on a stylesheet.

I should mention that technically you should be able to do it according to the CSS spec, but most browsers don't support it

Edit: I just did a quick test with this:

<a href="test.html" style="{color: blue; background: white} 
            :visited {color: green}
            :hover {background: yellow}
            :visited:hover {color: purple}">Test</a>

And it doesn't work in IE7, IE8 beta 2, Firefox or Chrome. Can anyone else test in any other browsers?

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Html – Set cellpadding and cellspacing in CSS

Basics

For controlling "cellpadding" in CSS, you can simply use padding on table cells. E.g. for 10px of "cellpadding":

td { 
    padding: 10px;
}

For "cellspacing", you can apply the border-spacing CSS property to your table. E.g. for 10px of "cellspacing":

table { 
    border-spacing: 10px;
    border-collapse: separate;
}

This property will even allow separate horizontal and vertical spacing, something you couldn't do with old-school "cellspacing".

Issues in IE ≤ 7

This will work in almost all popular browsers except for Internet Explorer up through Internet Explorer 7, where you're almost out of luck. I say "almost" because these browsers still support the border-collapse property, which merges the borders of adjoining table cells. If you're trying to eliminate cellspacing (that is, cellspacing="0") then border-collapse:collapse should have the same effect: no space between table cells. This support is buggy, though, as it does not override an existing cellspacing HTML attribute on the table element.

In short: for non-Internet Explorer 5-7 browsers, border-spacing handles you. For Internet Explorer, if your situation is just right (you want 0 cellspacing and your table doesn't have it defined already), you can use border-collapse:collapse.

table { 
    border-spacing: 0;
    border-collapse: collapse;
}

Note: For a great overview of CSS properties that one can apply to tables and for which browsers, see this fantastic Quirksmode page.

Html – How to give text or an image a transparent background using CSS

Either use a semi-transparent PNG or SVG image or use CSS:

background-color: rgba(255, 0, 0, 0.5);

Here's an article from css3.info, Opacity, RGBA and compromise (2007-06-03).

<p style="background-color: rgba(255, 0, 0, 0.5);">
  <span>Hello, World!</span>
</p>

Best Answer

Related Solutions

Html – Set cellpadding and cellspacing in CSS

Html – How to give text or an image a transparent background using CSS

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