Styling The '<HTML>' Element in CSS

Styling the `html` element in CSS?

Quite often you'll find people styling the HTML element since it does have an affect on the way the page is rendered.

The most notable style you're likely to see is

html,body{
   min-height:101%;
}

This is used to ensure that the scroll bars in browsers like Firefox, always show on the page. This stops the page shifting left and right when changing between long and short pages.

How to create a style tag with Javascript?

Try adding the style element to the head rather than the body.

This was tested in IE (7-9), Firefox, Opera and Chrome:

var css = 'h1 { background: red; }',
    head = document.head || document.getElementsByTagName('head')[0],
    style = document.createElement('style');

head.appendChild(style);

style.type = 'text/css';
if (style.styleSheet){
  // This is required for IE8 and below.
  style.styleSheet.cssText = css;
} else {
  style.appendChild(document.createTextNode(css));
}

Identifying html elements in CSS for styling and positioning

You can't use ID everywhere because only one element is allowed to have a given ID, so if you want to apply the same style to five different elements, you'd have to create five different rules, which is pointless.

It's usually best to use a baseline definition for how you want certain element types to appear generally (links, lists, tables, etc.). Then if you have specific places where you want those elements to have different styles, apply a class to an element to identify that place ("navigation-bar", e.g.), and use custom styles to modify the behavior of elements within that area:

li {/* How you generally want list items to appear */}
.navigation-bar li {/* How you want list items to appear in the nav bar */}

Due to the way the styles "cascade", properties set by the second rule will override the properties set by the first because the second selector is more specific.

As far as why there are multiple ways available to select an element, it's because they're pretty much all useful at one point or another. CSS helps reduce maintenance costs because you don't have to repeat the same styling information in a bunch of different places. It can only do this if you can come up with a rule that makes it possible to match the elements you want in a variety of different situations.

How to style the option of an html select element?

There are only a few style attributes that can be applied to an <option> element.

This is because this type of element is an example of a "replaced element". They are OS-dependent and are not part of the HTML/browser. It cannot be styled via CSS.

There are replacement plug-ins/libraries that look like a <select> but are actually composed of regular HTML elements that CAN be styled.

Copied css styling behaves differently on two elements?

(edited)

The difference (in yours JS fiddle) is in the li parent elements of the a tags and the second a tag itself: In the first case (nav menu) the li has display: inline-block, in the second case you applied float: left to it, which makes the applied display: block invalid and changes it to block. This changes the size of the a tag inside it, and therefore the size of the area that changes background-color on hover.

If you set both lis to inline-block, remove the float and add display: block; to the a tag inside it, they should behave identical.

How to display Base64 images in HTML

My suspect is of course the actual Base64 data. Otherwise it looks good to me. See this fiddle where a similar scheme is working. You may try specifying the character set.

<div>
  <p>Taken from wikpedia</p>
  <img src="data:image/png;base64, iVBORw0KGgoAAAANSUhEUgAAAAUA
    AAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO
        9TXL0Y4OHwAAAABJRU5ErkJggg==" alt="Red dot" />
</div>

Assigning multiple styles on an HTML element

In HTML the style attribute has the following syntax:

style="property1:value1;property2:value2"

so in your case:

<h2 style="text-align:center;font-family:tahoma">TITLE</h2>

Hope this helps.

How to apply style to the HTML title element?

No, there is no way set a style to this element, as it is controlled by the browser and the user. The only thing you can do to the title while viewing the page, is change it, but stay on the same page:

function changeTitle() {  document.title = "Title Changed!";  document.getElementById('test').innerHTML = "Title has been changed!";}

<button onclick="changeTitle()">Click Me!</button>
<p id="test"></p>
<p>View source to see the effect!</p>

Styling The '<HTML>' Element in CSS