Css div z index

David

May 7, 2025

7 min read

(also, properly asking a question will yield better results as well .CSS z-index 属性设置定位元素及其后代元素或 flex 项目的 Z 轴顺序。 z-index 较大的重叠元素会覆盖较小的元素。 尝试一下.Using z-index to get div above another div.

How the Z-index Property Works

Il n'a aucun effet sur le contenu ou la mise en page tant qu'il n'est pas mis en forme d'une . Actually, position: fixed, position: absolute and position: sticky will also enable z-index, but those values also change the layout. 이때 요소들의 수직 위치를 z-index 속성으로 정합니다.

z-index CSS propriété

Elle permet par exemple d'indiquer que pour deux éléments A et B partiellement ou . References References. Next Demo of the different values of the z-index property. transform: scale(2, 2); } That way you alter the dimensions of the element on hover without affecting any of the other elements in the document flow around it. The z-index property can be specified with an integer . An element can have .css - z-index not working with fixed positioning6 mars 2011How to make child element higher z-index than parent? At least the browser doesn't crash.My tests show that z-index: 2147483647 is the maximum value, tested on FF 3.With the following CSS: body { margin: 0; padding: 20px 0; } . I discovered a integer overflow bug: if you type z-index: 2147483648 (which is 2147483647 + 1) the element just goes behind all other elements. Demo of the different values of the z-index property. However, if you are using z-index, is safe to assume that your elements with z-index .Asked 11 years, 11 months ago.z-index の使用.

Empilement sans z-index

Modified 1 year, 4 months ago. An element can have a positive or negative stack order: This is a heading. In addition to their horizontal and vertical positions, boxes lie along a z-axis and are formatted one on top of the other. z-index并不是 . Commençons par un exemple simple, dans le contexte d'empilement racine nous avons deux blocs DIV ( DIV #1 et DIV #3 ), tout deux positionnés . It affects relative, absolute and fixed (positioned) elements. The z-index property specifies the stack order of an element (which element should be placed in front of, or behind, the others).The z-index CSS property specifies the z-order of a positioned element and its descendants. in the future - if you post code to accompany your question the answers would be easier to understand. It makes it more clear for additional . The z-index property can be specified with an integer value (positive, zero, or negative), which represents the position of the element along an imaginary z-axis.

Référence CSS

Click the property values below to see the result: z-index: 1; z-index: 2; z-index: 3; z-index: 4; . An element with a larger z-index generally covers an element with a lower one. Asked 5 years, 11 months ago.Temps de Lecture Estimé: 1 min

z-index

da Cristina | Mag 29, 2020 | CSS, Web | 0 commenti.I think the easiest way to do what you want would be to use a CSS transform.

Z-index and stacking contexts

Modified 7 years ago.If you want to create a custom stacking order, you can use the z-index property on a positioned element.Working Fiddle Example!.div { z-index: 1; /* integer */ } The z-index property in CSS controls the vertical stacking order of elements that overlap. Viewed 17k times. I expect to get this result: https://ibb. edited Nov 15, 2017 at 7:38.La propriété z-index permet de préciser l'empilement de certains éléments d'une page, c'est-à-dire sur l' axe vertical. 값은 정수이며, 숫자가 클 수록 위로 올라오고, 숫자가 작을 수록 아래로 내려갑니다. Overlapping elements with a larger z-index cover those with a smaller one., On the Fiddle you can see that I placed a background color to the position:fixed div as to illustrate that the solution is working.content { position: relative; z-index: . 对于定位盒子（即 position 属性值非 static 的盒 .orgZ-index CSS Tutorial ( Position and Stacking Order ) - YouTubeyoutube.For the same reason DIV #2 (z-index: 2) is rendered under DIV#5 (z-index: 1) because DIV #5 belongs to DIV #3, which has a higher z-index value. 結果は想定に反して、思い通りの結果になっていないこ .

How to apply z-index on background-image?

Critiques : 48

Comment fonctionne la propriété CSS z-index

The z-index: 50 appears over z-index: 100 because the 1 and 50 are in the base stacking context, whereas 100 is in the stacking context of 1. So if you want div#child to appear below div#parent you need to set a negative z-index for div#child. Overlapping elements with a larger z-index . If you don't position the ancestor at all, and you set the descendant of position: relative; z-index: -1, then you can (in Chrome at least, I haven't tested it further) position the child behind the parent.

La propiedad CSS z-index indica el orden de un elemento posicionado y sus descendientes. Questa proprietà è molto utilizzata nello sviluppo dei vari layout, ad esempio quando occorre scrivere su di un’immagine oppure bisogna posizionare un elemento contenitore davanti o dietro ad un altro.

Z Index in CSS: What it Is and What it Does

answered Nov 15, 2017 at 7:25. この記事の最初の部分、 z-index なしの重ね合わせ は、既定でどのように重ね合わせが行われるのかを説明します。. And the lesson to learn is that you should beware of entering too . I have a problem and I can't figure how to correct this. The z-index property specifies the stack order of an element.

This is likely to have .

Consequently, there is no way to set the z-index of an element so it appears in front of any of its descendants. Previous Next . z-index has no effect on statically-positioned elements (which is the default). Click the property values below to see the result: Play more with the code in our Tryit yourself editor: .

: l'élément de division du contenu

独自の重ね合わせ順を定義したい場合は、 位置指定 要素に z-index プロパティを使用して行うことができます。. Since 50 is greater than 1, 50 appears above 1 and everything in 1's context, but the 100 still retains a z-index of 100 within 1.Cette référence CSS fournit un index alphabétique de toutes les propriétés CSS standards, des pseudo-classes, des pseudo-éléments, des types de données et . Viewed 212k times. z-index的作用有两点，一是设置在当前 堆叠上下文 (stacking context) 中的层级；二是创建一个新的堆叠上下文；.

CSS z-index property

In many cases an element must be positioned for z-index to work.

CSS Layout

The z in z-index refers to the z-axis.centercontent { position:relative; max-width: 100%; height: auto; top: 50%; left: 50%; } . Skip to main content; Skip to search; Skip to select language; Open main menu.CSS z-index Previous. For a positioned box (that is, one with any position other than static ), the z-index property .Definition and Usage. What I want is that the . Overview / Web Technology. Asked 8 years, 1 month ago.The z-index attribute lets you adjust the order of the layering of objects when rendering content.次に、CSSでこの順番が逆転するように「z-indexプロパティ」の順番を変えて、「z-indexプロパティ」の指定した順番通りになれば良いのです。. Modified 5 years, 10 months ago.z-index for the nested div.The z-index you set for div#child is within the context of div#parent. La proprietà z-index nei CSS specifica la posizione di un elemento rispetto ad un altro.z-index CSS est propriété qui permet de spécifier la position d'empilement (notion de profondeur) d'un élément positionné par rapport aux autres éléments positionnés à . DIV #3's z-index is 4, but this value is independent from z-index of DIV #4, DIV #5 and DIV #6, because it belongs to a different stacking context.comRecommandé pour vous en fonction de ce qui est populaire • Avis

z-index

Many times the structure of the document changes overtime and relying on the document structure to keep the order in which menus float is not a good practice in my opinion.根据规范，z-index是应用到 定位元素 的，也就是 position 属性不为 static 的元素（感谢@a_dust和@ymwangel），否则，设置z-index是没有意义的；. When elements are positioned, they can overlap other elements. In addition to . e. If you are using less or scss or css 3, you can take advantage of their variables and define global constants for menus z-indexes.Note : Dans un groupe d'éléments sans aucune propriété z-index, tel que les blocs positionnés (DIV #1 à #4) dans l'exemple, l'ordre d'empilement des éléments est celui de leur ordre dans la hiérarchie HTML, quelle que soit leur position.

That's not inheritance. Cuando varios elementos se superponen, los elementos con mayor valor z-index cubren aquellos con menor valor. 예제 1 세 개의 div 요소를 겹치게 배치했습니다.front { position:absolute; top: 50px; left:800px; z-index: 2; } HTML: