You asked: What does margin auto mean in CSS?

A value of auto basically tells the browser to define the margin for you. In most cases, a value of auto will be equivalent to a value of 0 (which is the initial value for each margin property) or else whatever space is available on that side of the element.

How does auto margin work?

The auto Value

You can set the margin property to auto to horizontally center the element within its container. The element will then take up the specified width, and the remaining space will be split equally between the left and right margins.

What does AUTO mean in CSS?

Auto is the default value for dimension properties width and height. Setting margin:0 auto and a width or max-width allows a block of content to be horizontally centered on the page.

What does margin-top auto do?

This is the most common use of margin auto we come across often. By assigning auto to the left and right margins of an element, they take up the available horizontal space in the element’s container equally – and thus the element gets centered.

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How do you use margin auto to center?

To horizontally center a block element (like <div>), use margin: auto; Setting the width of the element will prevent it from stretching out to the edges of its container.

Why does margin auto not work?

If you use a left margin on an inline element then that margin only apples on the line that the text/element is on. If the line wraps there will be no margin on the subsequent lines. … margin:auto won’t work when you have a float or haven’t specified a width.

How do you use margin?

To use margin successfully, it helps to set certain parameters and follow the best-practices of seasoned margin investors:

  1. Use margin for appropriate assets. …
  2. Be selective in what you buy on margin. …
  3. Keep it short. …
  4. Avoid margin calls. …
  5. Know when to get out. …
  6. Take a test drive first.

What is CSS auto width?

Width auto. The initial width of a block level element like div or p is auto. This makes it expand to occupy all available horizontal space within its containing block. If it has any horizontal padding or border, the widths of those do not add to the total width of the element.

What does height auto do CSS?

The height property sets the height of an element. … If height: auto; the element will automatically adjust its height to allow its content to be displayed correctly. If height is set to a numeric value (like pixels, (r)em, percentages) then if the content does not fit within the specified height, it will overflow.

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How do you set max width in CSS?

The max-width property defines the maximum width of an element. If the content is larger than the maximum width, it will automatically change the height of the element.

Definition and Usage.

Default value: none
JavaScript syntax: object.style.maxWidth=”600px” Try it

What is the top margin?

The margin-top property sets the top margin of an element by specifying a length or a percentage. Percentage values refer to the parent element’s width. Negative margins are permitted. For example, the following rule would eliminate the top margin of a document: BODY { margin-top: 0 }

What is padding vs margin?

Basically, a margin is the space around an element and padding refers to the space between an element and the content inside it. … In creating the gap, the margin pushes adjacent elements away. On the other hand, padding is placed inside the border of an element.

How do I set margin in bootstrap 4?

r – sets margin-right or padding-right. x – sets both padding-left and padding-right or margin-left and margin-right. y – sets both padding-top and padding-bottom or margin-top and margin-bottom.

More Spacing Examples.

.m-# / m-*-# margin on all sides Try it
.px-# / px-*-# padding left and right Try it

What does the following do margin 0 auto?

margin:0 auto; … It means that left and right margin will take auto margin according to the width of the element and the width of the container. Generally if you want to put any element at center position then margin:auto works perfectly. But it only works in block elements.

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What is Flex display?

A flex container expands items to fill available free space or shrinks them to prevent overflow. Most importantly, the flexbox layout is direction-agnostic as opposed to the regular layouts (block which is vertically-based and inline which is horizontally-based).

How do you vertically align text?

Center the text vertically between the top and bottom margins

  1. Select the text that you want to center.
  2. On the Layout or Page Layout tab, click the Dialog Box Launcher. …
  3. In the Vertical alignment box, click Center.
  4. In the Apply to box, click Selected text, and then click OK.
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