This article mainly introduces the floating div adaptive center display js Code, if you need it, you can refer to it. When p is floating, the browser window cannot be centered when it changes (because left or right values are usually set during Floating)
You can use jquery to obtain the width of the peripheral p that changes with the browser (plus the listener event)
Then obtain the width of p, for exam
This article introduces the html pop-up div and move it to the center. The detailed implementation code is as follows. Do not miss it if you are interested.
The Code is as follows:
Untitled document
Display the image in the center of the div in jsp, as shown in figureExample:Copy codeThe Code is as follows:// CSS File// Body File If the image is in html, the image is centered, but the image is horizontally centered in jsp. In this case, we need to Copy codeThe Code is as follows: Adding the image in Jsp will be centered as expected!
In the use of div-CSS layout, many people have asked questions about how to vertically center images in containers. Here are several examples.
Example 1
Tip: you can modify some Code Run againExample 2
Tip: you can modify some code before runningExample 3
Tip: you can modify some code before runningBackground Image Method
Tip: you can modify some code before running
The first needs position:absolute, absolute positioning, or position:fixed. Instead of the layer's anchor point, use the external patch margin negative method. The negative size is the height of the layer itself divided by two.Such as: A layer width is 400, the height is 300. Use absolute positioning distance between upper and left is set to 50%. And the value of Margin-top is-150. The value of Margin-left is-200. This allows us to write a style that is vertically centered on the browser.. site_
The most common form of DIV+CSS Web page layout: Upper, middle left, middle right, bottom four modules, width 760px, the overall page center.
Structure code, top left right foot four modules are all independent and not nested.
The top is part of the general definition.
#top {height:100px; background: #ccc; width:760px; margin:auto; text-align:center;}
Method A: The outer left is defined to be 760px wide and
In the JSP, let the picture be centered in the Div, as shown above
Example:
Copy Code code as follows:
CSS file
Body file
If in the HTML, there will be that effect on the diagram, the picture is centered, but the picture in the JSP only horizontally centered, in this case, we need to
Copy Code code as follows:
Add to the JSP in the picture will be the
The principle is: First use left:50%;top:50% let the upper left corner of the div in the center of the page, and then use margin-left:-417px;margin-top:-275px;
the display area at the layer distance.Note: divId refers to the layer to be centered, and divId. clientWidth is its width! @Var divId = document. getElementById ("xxx ");Var v_left = (document. body. clientWidth-divId.clientWidth)/2;Var v_top = (document. body. clientHeight-divId.clientHeight)/2;2. Assign the obtained value to the left and top attributes of the DIV.DivId. style. left = v_left;DivId. style. top = v_top;Note: divId is the id value of the DIV
Previously wanted to put the login form is always placed in the middle of the page, spent a lot of thought, has been using the solution is to use JS, feel a little trouble is not very good, so in the online query a bit found a comparison of the implementation method.The principle is to use Position:absolute, and then with the left:50%,top:50%, now login form left right angle is in the middle of the page, but the login box itself has width and height, so we use the margin-left:-login box width, m
Mission objectives
Practice Html/css Layout method
Learn more about CSS properties such as position
Task description
Implement the effect as an example diagram (click to open)
Gray elements are vertically centered horizontally, with two one-fourth circles in their upper-left and lower-right corners.
Task considerations
Consider a solution that is vertically centered horizontally in different situations (such as gray heights based on dynamic changes in content).
Try a
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