how to make box centered in css

intuitively express how to use box-shadow to draw this image: When the colors of all shadows are the same, they naturally become a cloud: Of course, if the brain hole is large enough, it is more complicated. Let's take a look at the figure below, which is also completed by a single Tag: What is more difficult is the circle around the letter e and the irregular corner of the cut-in. Let's see how to use the shadow to

Reprint please specify the source!The three most important CSS concepts that need to be mastered are floating, positioning and box models.Box Model Overview:Each element on the page is considered a rectangular box (an element box or box model), which consists of the element

If you want to try the page layout without a table, instead, you can use CSS to format your Web page, which is often used to compose your Web page structure with Div, or you want to learn the standard design of Web pages, or your boss wants you to change the traditional form layout, improve the competitiveness of enterprises, Then you must be exposed to a knowledge point is the CSS

-shadow:When all shades of color are the same color, it naturally becomes a cloud:Of course, the brain hole is big enough, more complex is also possible, to see the following figure, is also done by a single label:One of the more difficult is the circle around the letter e and the irregular angle of the cut-in, see how to make it out of the shadow, using the two box-shadow:Well, of course, you ask me what t

use the IE box model. IE6 and newer versions are standard box models used in standard compatibility mode. If you set a DOCTYPE for a document, IE will work in the same way as the standard compatibility mode. This box model problem only appears in IE5.5 and earlier versions. Solve the problemNow that the IE6 and subsequent versions follow the standard compatibili

CSS3 is an upgraded version of CSS technology, the latest version.As far as CSS is concerned, it is a module, is a large and complex module, but in the CSS3, this a large module decomposition into a simple and easy to understand the small module, while CSS3 added some new modules, so CSS3 toward the direction of the modular development.The more important modules in CSS3 are: selectors,

," and "layouts" in the visual format model refer to how each element is to be displayed. In CSS 2.1, the layout of a control box can be based on three kinds of positioning scenarios: Regular flow. In CSS 2.1, regular flow flows include block formatting for block boxes, inline formatting in inline boxes, relative positioning of block or inline boxes, and positi

1. When you move the mouse up, there is a small box for saving and printing the favorite window. Can you limit it? Add in Head 2. Use the new property galleryimg on the Image 3. Div implements the scroll bar (in some cases, IFRAME can be replaced) The height and overflow must be set! PS: in IE, the horizontal scroll bar sometimes appears, but in fact, the horizontal scroll bar does not have any practical purpose. It seems that this is an IE bug. So

, equivalent to a book before, plus a padding-left equivalent to add a placeholder for the book to the right squeeze, very image of the explanation of all this.See, the CSS box model is boxy, so the decoration of the box margin, border, etc. are four directions. For example, the margin style is added, usually this way: margin:5px; margin:5px 10px; margin

Box model of HTML and CSS, cssbox As the last article in the attribute article, this article describes the key-Box model of HTML and CSS ). the key to understanding the Box model is the margin and padding attributes. Correct understanding of these two attributes is also the

Original: CSS know how much (7)--Box model1. IntroductionStarting with this section, we'll go into the third part of this series--css. This section describes some of the layout and rendering characteristics of CSS in the page. Includes two categories: text, block.First Class--text. This section is relatively simple, su

Here use less to make a hint box with arrows, compared with the CSS, more convenient, you can leave a lot of code, others do not rip, first look at the effect bar.Here I implement a 4-direction prompt box, the following is the implementation of the Code:Hint Box code:Less pa

CSS Box ModelThe box model is an important concept in CSS. It is the cornerstone of the CSS visual formatting system. The box model can be used for element locating and webpage layout. According to the

1. IntroductionStarting with this section, we'll go into the third part of this series--css. This section describes some of the layout and rendering characteristics of CSS in the page. Includes two categories: text, block.First Class--text. This section is relatively simple, such as setting the font size, font, color, background color, whether bold, and so on. The focus is on setting the font, setting the h

above③ only displays a portion of the picture :Suppose the icon starts at the x-axis to the right 100px relative to the upper-left corner of the picture, and the y-axis begins at 0px, so write:background-position:-100px,0px;As a result, the image only shows the icon part (that is, from the upper left corner of the image to the right 100px);Y-Axis method(50) Linear gradient①linear-gradient () This is the background-image parameter.② the value in parentheses:angle:(gradient direction, from top do

Introduction If you want to learn CSS, I am afraid the box model is an indispensable part of it! What exactly is a box model? Small series to bring everyone familiar with. Why is it called a box model? We will see a variety of pictures, text, audio, video, etc., which are the elements of the We

CSS (3) Resolution box model floating The previous blog left two issues: float and location. They just gave a brief description of the issues. Today, I will reveal their details carefully. This article is a float article. Float is playing an increasingly important role in the popular CSS typographical era, just as aline is important to positioning web elements, b

, padding, and border like other boxes. It seems a little hard to understand. The left margin shown above pushes the box to the right, but it is valid only in the first line because it is the starting point of the box. Normally, the padding is applied to the upper or lower part of the text. When it is folded, it ignores the padding of the above row and uses the position required by the line-height as th

Posted on2013-09-18 Stephen_liu Read (2205) Comments (6) Edit Collection In a standard flow, a block-level element automatically stretches in the horizontal direction until the bounds of the element that contains it, and in the vertical direction and the sibling elements are arranged sequentially, not side-by. Block-level elements behave differently when you use the Float method.There is a float property in the CSS, which defaults to none, which is u

height of the sub-box changes, what to do? Answer: We can clear the float behind the floating child box within the parent, i.e. Div style= "Clear:both" >following code effect with the standard browser FF: Note: Set a floating object, be sure to set a width for it, otherwise there will be unexpected results, that is, there is no width and no content objects floating after the width will be nearly 0. Let's t