of those.Icon:Another overlap is when an element is contained within another element, and there is overlap between the child element and the parent element, and the overlapping margin is equal to the largest of those:Similarly, if an empty element has no content, its own top and bottom margins overlap.Meaning of margin overlapThe overlap of the margins is only generated between the upper and lower margins
Article Introduction: there are several writing specifications for Margin,padding,border-style in CSS.
When we use CSS, we often see margin:0 0,margin:0 5px,padding:0 5px 10px, and what they study, in web standards, they have the following meanings, which are suit
CSS + DIV summary, css div Summary
CSS is a markup language used to control webpage styles and separate style information from webpage content. It is introduced to make the HTML language better adapt to the page art design.
CSS
BFC
Auto value of 3.margin
Setting margin:0 Auto for a fixed-width block element, which should be used frequently by many people, can be centered horizontally, but it may be very rare to know what the auto value does.
Simply put, for an element that does not have a fixed width or height value, if it can be automatically stretched, auto can be used to allocate the remaining amount of space when a fixed
This article mainly and everybody to share CSS inside margin and the margin, this article uses many examples and the code, hoped can help everybody.
Outer margin:
Margin left margin Margin
= "parent"> = "Child" > demo div> div>#parent { background:red; width:200px; height:200px;} #child { background:green; width:50px; height:50px; margin-top:50px;}The child's margin-top is passed to the parent.Margin merging means that when two vertical margins meet, they form an outer ma
The CSS box model consists of four parts: content, padding (padding), border (border), margin (margin), where the Width property defined in the CSS style is defined as the breadth of the content area, and normally, when the width of the content area is set, Then set the Box's fill, border, and
The reason for writing this article stems from this article: the discussion about position in the interview and the interview, the words from the beginning:
In the interview, ask a CSS position property can brush off half of the people this is what the situation ...
In fact, I was going to go along all the way to normal flow, containing block, BFC, margin collapse,base line,writing Mode,bidi, B
Core tips: Class can be reused and IDs can only be used once in a page. It is possible that using the same ID repeatedly in a large number of browsers will not cause problems, but it is definitely wrong to use on the standard and is likely to lead to some real-world problems with browsers.
Class can be reused and IDs can only be used once in a page. It is possible that using the same ID repeatedly in a large number of browsers will not cause problems, but it is definitely wrong to use on the st
CSS margin overlap and Prevention methods Hu Juntao | 2011-11-17
boundary overlap refers to two or more boxes (which may or may be nested) adjacent boundaries (in which there is no non-empty content, padding, borders) coincident together to form a single boundary.
The vertical adjacent boundary of two or more block-level boxes is coincident. The boundary width of the result is the largest valu
Many beginners to make Web pages of friends, may encounter a common problem, is to add margin:0 Auto in CSS, but no effect, can not center the issue, margin:0 auto; The meaning is: the upper and lower boundary is 0, the left and right according to the width of the self-adaptation, in fact, the meaning of the horizontal center, Here are two typical errors caused b
elements to maintain a consistent distance.
Only the vertical boundary of the block box in the normal document flow can overlap the boundary. The boundary between the line box, floating box, or absolute positioning box is not superimposed.
Border superpositionSide-by-side superposition is a misunderstanding that will cause a lot of troublesome CSS features. See the simple example of nested section in the div
margin overlap
Excerpt from the css2.1 specification Chinese version
In CSS, adjacent margin of two or more boxes (possibly but not necessarily brothers) is combined into a margin. Margin is called overlapping in this way (collapse), the resulting union
Deep understanding of negative margin values in CSS and negative cssmargin values* Directory [1]: [2] overlapping [3] floating [4] positioning [5] Before application
The margin attribute is very commonly used in practice, and is also a place where there are many pitfalls at ordinary times. In the margin folding section
: Red,yellow,green ...
Hexadecimal notation, #开头, a combination of 6 hexadecimal characters or numbers, such as: #FFFFFF, #000000 ...
RGB mode, Red 0-255, Green 0-255, Blue 0-255, for example: RGB (120,33,234) ...
Rgba mode, for example: Rgba (255,0,0,0.5), and the last a for transparency 50%
Opacity transparencyA decimal value between 0.0-1.0div{opacity:0.5;}ie6-ie8:div{Filter:alpha (opacity=50);}Text-decoration text DecorationNone s
This is my interview in a company encountered problems, then did not answer!!So see the small partners must pay attention to!!Change the browser width to see the effect:Right and left.Then we'll look at the code:First method: (floating)styletype= "Text/css">. Left,.right,.center{Border:1px solid;Height:100px;text-align:Center;Line-height:100px;font-size:50px; }. Left{float: Left;width:100px; }. Right{float: Right;width:100px; }. C
paragraph. If there is no margin merge, the margins between all subsequent paragraphs will be the same as the top margin and the bottom margin. This means that the space between the paragraphs is twice times the top of the page. If a margin merge occurs, the top and bottom margins between the paragraphs are merged tog
CSS attributes: margin and cssmargin0. Effect on the visible width of the image itself
1> change the visible width of the block element in the standard document stream without setting the width value
In the standard Document Stream, when a block element with no width is set, its own width is 100% of the width of the parent element after it has content or height, at this time, you can set the
Example 4margin:10px;
All 4 margins are 10px
Default value:
0
Inheritance:
No
Version:
CSS1
JavaScript Syntax:
object. style.margin= "10px 5px"
Possible values
value
Description
Auto
The browser calculates the margin.
Length
Specify the value of the
Article Introduction: Beginners Use DIV+CSS structure to write a few misunderstandings of the Web page.
The creation of Web pages for the use of Div and CSS structure to write static page is now very mature, but many new entrants to the use of Div and
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