css div margin

css| optimization Margin is one of the most commonly used properties in CSS layouts, but if not properly used, it tends to produce too much junk code, allowing our coding volume to grow. Today we introduce a small example of coding optimization, through this example, we hope that you can realize that the path of code optimization is a variety of, but also a prime

1. Some special font styles:Indent 2 characters in first line: {text-indent:2em;}Center horizontally: {text-align:center;}Justify: {text-align:justify;}Center vertically: {vertical-align:middle;}Word spacing 2 characters: {letter-spacing:2em;}Line spacing twice times: {line-height:2;}2. The navigation bar is fixed somewhere on the page (relative to {position:fixed;left:px;top:px;}3. Block-level elements and inline elements: Common block-level elements:Common inline elements:, Block-level elemen

Source: http://www.ido321.com/387.htmlSuppose you think it should be this:That's a mistake.The result is this:Because there is a margin collapse in CSS, the boundary collapses or the boundary overlaps. For the top and bottom two paralleldiv block. The margin-bottom of the above div and the

, and margins are no exception. For example, in a browser that supports CSS, margins generate a "blank line" above and below each paragraph element. Therefore, if the margin is not declared for the P element, the browser may apply an outer margin on its own. Of course, the default style will be overridden as long as you specifically make a declaration. Value repl

In CSS, width and height refer to the widths and heights of the inner regions. Increasing the padding, borders, and margins does not affect the size of the content area, but increases the total size of the element box. (The actual footprint of the div has changed.)But:Once the appropriate DTD has been set for the page, most browsers will render the content as shown above. However, the rendering of IE 5 and

first, solidify the box model . :Visible dimensions within the solid line (clientwidth and clientheight);Within a dashed line of margin is the Occupy Size.Several special effects of margin:1, Change the client size: a set of Fixed-width adaptive layout:egFor this page, let IMG float on the left, and the text inside will wrap around the image:Blue is the P tag content block size, and yellow is the default

Css-inline (in-row) elements, block elements, margin, and padding Features of block elements: Always starts on a new line;Height, row height, and top and bottom margins can be controlled;The default width is 100% of its container unless a width is set. Features of the inline element: And other elements are on one line;High, the Row Height and top and bottom margins cannot be changed;The width of a text or

Why does css sub-element margin-top affect the parent element? cssmargin-top For details, click This problem has been confusing for a long time. Although there is no major problem, I have come to know how to solve it, but I still don't know what the cause is. If there is a problem with IE, I don't care too much, but the problem is that all the top-level browsers are doing this. How can I feel at ease? Tod

; Top margin and bottom margin are 10px Right margin and left margin are 5px Example 4margin:10px; All 4 margins are 10px value Description The Auto browser calculates the margin. Length Specifies the value of the

You are learning margin and padding when you are ignorant,--what his Niang inner margin, what his niang margin. Oh ah, at first I also a bit do not understand, and later through the study of information learning finally figured out, and now I will talk about their own margin and padding understanding: First, what is t

consistent distance between elements Only the vertical boundary of a block box in a normal document stream occurs with a boundary overlay. The bounds between the inline, floating, or absolute positioning boxes do not overlap. 　　 the problem of boundary superposition Side-Office stacking is a CSS feature that can cause a lot of trouble if misunderstood. Refer to a simple example of a nested paragraph in a D