CSS Height & Width | CSS for Beginners - Class 6 PDF Download

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CSS Height, Width and Max-width

• The CSS height and width properties are used to set the height and width of an element.
• CSS max-width property is used to set the maximum width of an element.

CSS Setting height and width

• The height and width properties are used to set the height and width of an element.
• The height and width properties do not include padding, borders, or margins. It sets the height/width of the area inside the padding, border, and margin of the element.

CSS height and width Values
The height and width properties may have the following values:

• auto - This is default. The browser calculates the height and width
• length - Defines the height/width in px, cm etc.
• % - Defines the height/width in percent of the containing block
• initial - Sets the height/width to its default value
• inherit - The height/width will be inherited from its parent value

CSS height and width Examples

Example
Set the height and width of a <div> element:

div {

  height: 200px;

  width: 50%;

  background-color: powderblue;

}

Example

Set the height and width of another <div> element:

div {

  height: 100px;

  width: 500px;

  background-color: powderblue;

}

Note: Remember that the height and width properties do not include padding, borders, or margins! They set the height/width of the area inside the padding, border, and margin of the element!

Setting max-width

• The max-width property is used to set the maximum width of an element.
• The max-width can be specified in length values, like px, cm, etc., or in percent (%) of the containing block, or set to none (this is default. Means that there is no maximum width).
• The problem with the <div> above occurs when the browser window is smaller than the width of the element (500px). The browser then adds a horizontal scrollbar to the page.
• Using max-width instead, in this situation, will improve the browser's handling of small windows.

Tip: Drag the browser window to smaller than 500px wide, to see the difference between the two divs!

Note: If you for some reason use both the width property and the max-width property on the same element, and the value of the width property is larger than the max-width property; the max-width property will be used (and the width property will be ignored).

Example
This <div> element has a height of 100 pixels and a max-width of 500 pixels: 

div {

  max-width: 500px;

  height: 100px;

  background-color: powderblue;

}

All CSS Dimension Properties