How to use display in css-CSS Tutorial-php.cn

How to use display in css

清浅

Release： 2018-11-21 14:13:56

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Display commonly used attribute values are block-level block, row-level inline, row-block-level inline-block, none, and row-level or block-level labels can be converted through display

This article will share the display attribute in CSS, which has certain reference value. I hope it will be helpful to everyone

We usually use the values block, none, inline, and inline in the display attribute when making CSS layouts. -block So today we will learn how to use them

display attribute

The display attribute can have multiple values, but the commonly used ones are as follows

none: This element will not be displayed.

block: This element will be displayed as a block-level element, with line breaks before and after this element.

inline: This element will be displayed as an inline element, with no line breaks before and after the element.

inline-block: Inline block element, which has both block-level attributes and row-level attributes.

So in this article, I will introduce in detail block, inline, inline-block and none, these commonly used attribute values

display: block

Features: Occupies one line by itself, the width and height can be changed through CSS

Commonly used block-level elements: div, p, ul, li, ol, form, address

display ：inline

Features: The content determines the size, and the width and height cannot be changed through CSS

Commonly used row-level elements: span, strong, em, a, del

<style>
	div{
		background-color: pink;
	}
	span{
		background-color: yellow;
	}
	</style>
</head>
<body>		
	<div>123</div>//块级元素
 <p><span class="span">hello</span>world</p>//行级元素

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As shown in the picture above, you can see that the block element occupies the full width of the line. If you think of it as width:100%, the following content should start with a new line.

And the row-level element only displays its own part. The content does not occupy a row

Rendering

Image 13.jpg

Row block-level element conversion

(1) Convert block-level elements to row-level elements

Set display: inline for block-level elements

The result is like this

Image 15.jpg

(2) Row level Convert elements to block level

Set display:block for row-level elements

The result is as follows

Image 16.jpg

display:inline-block

Common inline block elements: img, input

Features: The content determines the size, and the width and height can be changed

<style>
	span{
		background-color: yellow;
		display:inline-block;//设置行块级元素
		width:100px;
		height:30px;
	}
	</style>
</head>
<body>		
 <p><span class="span">hello</span>world</p>

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Rendering

The difference between display: none and visibility: hidden

display: none is used to hide elements, which is not only invisible but also takes up no space. Size

visibility: hidden can also be used to hide elements, but they still exist even if they are not visible, leaving an empty space

Example

display:none

 .span{
   background-color: aquamarine;
  display:none;}
	</style>
</head>
<body>		
 <p><span class="span">hello</span>world</p>

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Rendering

Image 12.jpg

hello is hidden but does not leave any space

visibility: hidden

<style>
 .span{
  background-color: pink;
   visibility: hidden;}
</style>
</head>
<body>
 <p><span class="span">hello</span>world</p>

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Effect Picture

Image 11.jpg

hello is hidden but still has a vacant position

Summary: The above is the entire content of this article. I hope it will be useful for everyone to learn display. help

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