Javascript Gets Element Height

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Michael Zippo 04.11.2021

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When designing a web page, you will probably want to specify specific dimensions for the elements that appear on the web page. For example, you might want a box to have a certain height or a line of text to extend to a certain width.

is where the CSS height and width properties come into play. The height and width properties are used to define the height and width of an element in CSS.

This tutorial will discuss, with examples, the basics of CSS height and width properties and how to use min and maximum height and width properties for designing responsive elements. By the end of this tutorial, you will be well versed in using CSS height and width properties to set the size of an element on a web page.

CSS height and width

Adjusting the height and width of an element on a web page allows you to define the space that the element will occupy on the web page . This can help you develop a structure for the elements of your web page so that each element appears correctly according to your needs.

To define how far an element can extend horizontally and vertically, you can use the width and height properties, respectively.

The width and height properties allow you to set a specific width and height for the content area of a box. This means that the width and height properties control the amount of space a box contains and do not affect a margin or a set of padding for a box

The height and width properties use the following syntax:.

HeightValue and widthValue can accept any of the following values:

• auto: the browser automatically calculates height and width
• length:. the width or height of a frame in px, em, rem, etc.
• percentage: the width or height of a box as a percentage of the size of the blocks in which an initial
• element appears:. the default value specified for the
• inherit: box. the same value as the width or height of the box in which an element appears

Now that we know the basics of height and width properties, we can explore an example of each of these properties in action.

CSS height and width

Suppose we are designing a website for a local cafe called The Pickled Apple. This cafe asked us to create a box on their "About" website, which should contain a brief description of the cafe.

This area should be 200px wide and 200px high and have a light gray background. These dimensions were chosen to make sure that the other elements we want to add to the web page shape when we implement them.

We could use the following code to create the box:.

Click

Let ’s analyze our code .. In our HTML file, we created a paragraph of text using a

tag. This

tag has the class name AboutBox, which we use in our CSS file to style the text paragraph.

In our CSS file, we have defined a style rule that applies to any element with the class name AboutBox. This style rule sets the height of an element to 200px, the width of an element to 200px, and sets the background color of an element to light gray.

If we want our element to be 100px wide. We need could change the width property equal to 100px. Or, if we wanted our element to be 300px high, we could change the Height property to equal 300px

properties of CSS minimum and maximum length

width and height are fixed values. this means that the specified width and height remain the same and will not change if you resize the window or view the webpage on another device (unless you use a height relative value, for example a percentage of the size of the parent element).

It’s important to understand this because if you want to design an accessible experience, it may not be practical to set specific heights and widths for the elements. For example, if you specify the image width to 500px, the picture may not render properly if a user views the site on a mobile device, the size of the screen may be smaller.

is where the minimum and maximum length values .

To adapt an element to screens and window dimensions , you can use the minimum width, m ax width, min-height, and the max-height properties. When you specify these properties, the values ‚Äã‚Äãspecified for width and height will override.

The min-height property defines the minimum height of a property. If the minimum height is specified, the height of an element can never be less than the minimum height value. The min-width property defines the minimum width of a property and works the same way.

Likewise , if you want to set the maximum height or width of a property, you can use max height and maximum width, respectively.

Let’s go back to our coffee example from earlier. Suppose we want to change the width of our box based on the user’s screen size . The maximum box width should be 500px and our box should never be narrower than 100px. We could do this using the following code:

Click

Let ’s analyze our code and chat. How it works. In our HTML file, we specified a paragraph of text between

tags containing the same text as our first example. The name of the class associated with this text paragraph is AboutBox.

In our CSS file, we have specified three properties associated with AboutBox class