Absolute Positioning

Archive for 'Layers and positions' Category

Layers and positions

A layer is a type of container. It can hold text, images, tables, and other layers. While layers are extremely difficult to hardcode and a number of browsers do not support layers, they can be used to an advantage for obtaining text and image effects and for the creation of websites that are creative. The [...]

Using layers to position elements

Coordinates and positioning are two important attributes of the layer that have to be considered the moment the web designers works on their compositions. The x/y coordinate system begins with the top-right corner of the page. Layers can be stacked or overlapped in the order supplied by the third coordinate called the z-index, which is [...]

Attributes and positions

An HTML attribute or a style property is called a parameter in web-design parlance. For instance, the id parameter means either an id attribute that can used with the <layer> tag or the id style property. However, property means style property. The <layer> tag takes on pixels as the unit of measurement for attributes that [...]

Relative positioning and layers

Relatively positioned layers form part of the normal flow of the web page. These are also known as inflow layers. These layers occupy space in the document flow and share line space with other elements of the web page. The left and top attributes or properties can be set to specify the offset of the [...]

Absolute positioning and layers

Absolutely positioned layers can be defined with reference to its coordinates within its containing layer. The top, left corner of the layer can be set using the left and top attributes or properties. However, if these attributes are not set, they will default to the top and left of the containing layer automatically. The absolutely [...]

Layer problems

The most irritating problem about absolutely positioned layers is overlapping text. The moment users resize their text, all the beautiful layering done by the web designer takes a toss! The text begins to overlap. While Gecko browsers will allow the text to overflow, IE will expand the layers and overlap the borders of the layers [...]

Stacking layers

We briefly discussed z-index order and stacking of layers. In this section we shall understand this concept in more detail. CSS allows designers to position boxes on layers, in addition to rendering the layers from 0 to whatever integer value they wish to stack layers in the z-index property. The position of the layer in [...]

Default stacking rules

Let us visualize a situation where no z index is assigned to a layer. What would be the stacking order—Default? The default order of stacking takes into account the background and borders of the root element, the descendant blocks in the normal flow—in the order of appearance in HTML, the descendant order of elements—again in [...]

How floating elements can be handled

The stacking of floating blocks is handled differently. They are placed between the nonpositioned and the positioned boxes after taking into account the background and borders of the root element, the descendant blocks in the normal flow—in the order of their appearance in HTML, floating blocks, and descendant positioned elements in the order of their [...]

Using z-index to change default stacking

If a z-index is specified, then the default stacking order is overridden, and the specified stacking order takes effect. The z-index defines the position of the element in the z-index or third dimension of the page. The integer value can be positive or negative. The layer with the lowest index value will be the bottommost [...]