People slowly realized that the traditional box model was not straightforward, so they added a new one called
box-sizingThe CSS property.
box-sizing: Box size, box model.
We often encounter the left and right module width of 50%, add a border will fall down, add a style to solve, look at the chestnut:
The Box-sizing property can be one of three values: Content-box (Default), Border-box,padding-box.
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When you set an element like box-sizing: border-box; This, the interior and border of this element will not increase the width of the element itself. DOCTYPE HTML>HTMLLang= "en">Head> MetaCharSet= "UTF-8"> title>Test box-sizingtitle> style>. Simple{width:500px;margin:20px Auto;Border:Solid Red 40px; /*-webkit-box-sizing:border-box; -moz-box-sizing:border-box;*/box-sizing:Border-box; }. Fancy{width:500px;margin:20px Auto;padding:50p
Box-sizing: When the value is Border-box, it means: Indicates the width and height of the element, including the width and height of the inner filler area (referred to as border and padding) and the border, and when the value is Content-box, its meaning is the opposite of the former, indicating that it does not include The width and height of the inner filler area and border;Look at the following illustration:"en">"UTF-8"> class="Div1"> UPM's top Asti
collecting garbage. The rate at which garbage collection can be accepted is related to the application and should be adjusted by analyzing the time and frequency of actual garbage collection. If the heap size is large, then the total garbage collection will be slow, but the frequency will be reduced. If you match the size of the heap to the needs of the memory, it will be collected very quickly, but more often. The purpose of sizing the heap is to mi
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* {-moz-box-sizing:border-box;-webkit-box-sizing:border-box;box-sizing:border-box;}Sometimes these css are found in some projects. What is the use of box-sizing still have to start talking about ...We generally calculate the width of a block element will be left and right padding, the left border width, margin is counted in, as shown (browser default calculation), width is not 100px, but 160px:Style= "width:100px;padding:15px;border:5px solid black;ma
Objective outlineI. Syntax declarationBox-sizing:content-box | Border-box | InheritTwo. Attribute Value descriptionContent-box the padding and border of the element drawn outside the width and height border-box any padding and borders specified for the element will be drawn within the set width and height inherit inherit the value of the Box-sizing property of the parent elementThree. Browser compatibilityDescription IE8 and above support this prop
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Box-sizing
Properties allow you to define specific elements that match a region in a specific way.
For example, if you need to place two boxes with borders side-by, you can set box-sizing to "Border-box". This allows the browser to render a box with the specified width and height, and place the border and padding into the box.
GrammarBox-sizing:content-box|border-box|inherit;
be more suitable for us to understandThe width and Height properties We set are the actual widths and heights of the elements.The calculation formula is as followselement content Area width = width-padding (left and right padding size)-border (left and right border size)element content Area height = height-padding (upper and lower padding size)-border (upper and lower border size)Under the box model in IE6 promiscuous modeAfter we set the width and heightThe width of the element is settled.Sett
Box-sizing, know why, see English, "box type". I'll go, all right. is how you want to get the box model.Come on, see what property values are available:Box-sizing:content-box|border-box|inherit;Well, three. Not bad(1) Content-box: The width and height are applied to the content box of the element respectively. draws the inner margin and border of the element outside the width and height.Understand, do not understand quickly to see the box model is wh
. Adding border, margin, padding causes the content width to decrease and the width of the reduction to be the sum of the three.2, the width of the box to add border, margin, padding, will lead to wider box expansion. The Width property of a box is just the breadth of the box's content area, not the horizontal width the box occupies.For ease of calculation, CSS3 new attribute box-sizing can also set the width of the box to No width (width= "auto") sta
Some time ago in an interface to encounter a problem, to a long width is 100% of the page div set border, the length of the div is more than 100%, this is how it happened? This is not a problem for the boss who is proficient in CSS, but for the first entry of me is a bit of a dumb, so find a lot of information to understand after the solution of this problem, here to share, to remind themselves of the importance of continuous learning.Look at the problem first, this is the comparison of the code
Reference: 1. W3cplus 2.MDNBox modelCSS in the box model is divided into two, the first is the standard model of the Internet, and the other is the traditional model of IE. It involves width, height, padding, border and margin.1, the Standard box Model: /*外盒尺寸计算(元素空间尺寸)*/ Element空间高度 = content height + padding + border + margin Element 空间宽度 = content width + padding + border + margin /*内盒尺寸计算(元素大小)*/ Element Height = content height + padding + border (Height为内容高度) Element Width = content w
The box-sizing property is used to define the area represented by the width and height of the element . This property generally has three kinds of values: Content-box, Border-box, inherit. Where inherit indicates that the value of box-sizing should inherit from the parent element.The main difference between Content-box and Border-box is that the value of the element's width and height package does not incl
NetBeans under the Windows system can be ignored without looking at the following, because the configuration of etc/netbeans.conf in the installation directory is already set up.After installing NetBeans 8.0.2 in Ubuntu , after you open a xxx.php file, you will find that the font wants to chew the same and look uncomfortable. Finding actionable information on the Web is:Go to the NetBeans directory, locate the etc/netbeans.conf file, and use Gedit to open the edit.Found itNetbeans_default_option
To give you a summary of the browser-compatible method of getting the window size// 浏览器窗口varw= document.documentElement.clientWidth|| document.body.clientWidth;varh= document.documentElement.clientHeight|| document.body.clientHeight;// 网页窗口varw=document.documentElement.scrollWidth|| document.body.scrollWidth;varh=document.documentElement.scrollHeight|| document.body.scrollHeight;// 网页窗口(包括滚动条等边线,会随窗口的显示大小改变)var w= document.documentElement.offsetWidth|| document.body.offsetWidth;varh= document.do
related to the application and should be adjusted by analyzing the actual time and frequency of garbage collection. If the heap is large in size, complete garbage collection can be slow, but the frequency is reduced. If you match the size of the heap with the need for memory, the collection will be complete quickly, but will be more frequent. The purpose of the heap sizing is to minimize the time spent in garbage collection to maximize the processing
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