Css get windows width

Window and viewport width in CSS and Javascript

If you write a CSS media query like (min-width: 769px) you don’t think long about which width is actually meant. It just works. The browser automatically does the right thing. If the viewport is 769px wide or wider the media query returns true and the CSS will be applied.

If you need the same behaviour in Javascript because you might want to initiate a script at a certain breakpoint it gets a little bit trickier if you don’t know what width you are looking for.

Window != Viewport

CSS media queries react to the width of the browser window including the scrollbars. In other words: The viewport, not the window or website (the width of the html element).

On Mac OSX Yosemite in Chrome for example, (min-width: 769px) is true if the html element is 754px wide. That’s because the scrollbar has a width of 15px . Thus the viewport is 769px wide.

So what does that mean for our Javascript?

jQuery’s .width() as well as .outerWidth() will return 754px for the $(window) width. That’s not the width our CSS media query reacts to.

If you want a Javascript to fire at the same time a CSS media query evaluates to true, you should reach for window.innerWidth
This will return 769px . It returns the width of the window including scrollbars.

There is also window.outerWidth which returns the width of the window including scrollbars and other window elements like the window border or the DevTools panel if you have it open and pinned to the side.

Recap

CSS Media Query:
Width of the window including scrollbars
jQuery $(window).width and $(window).outerWidth:
Width of the window without scrollbars
window.outerWidth
Width of the window including scrollbars and other elements like the window border or DevTools
window.innerWidth
Width of the window including scrollbars

tl;dr

CSS Media Query width == window.innerWidth

Hi, I’m Martin Wolf, a Freelance Frontend Web Developer from Germany.
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Get Screen Width Using CSS: Techniques for Responsive Design

Learn different techniques to get screen width using CSS, including viewport units, width property, and JavaScript. Create responsive designs that work across different devices and screen sizes with these best practices.

• Using Viewport Units to Get Screen Width
• Using the Width Property to Get Screen Width
• HTML : How to get current screen width in CSS?
• Using JavaScript to Get Screen Size
• Understanding the device-width Feature
• Other helpful code samples for obtaining screen width in CSS
• Conclusion
• How do I get the current width of my screen in CSS?
• How do you check how wide your screen is?
• How to get screen width in Java?
• How to use device width in CSS?

As a web developer, creating a responsive design that works across different devices and screen sizes is a crucial part of the development process. One common requirement is to get the width of the screen using CSS, which can be done using various techniques. In this blog post, we will explore different ways to get the screen width in CSS, including using viewport units, the width property, and JavaScript.

Using Viewport Units to Get Screen Width

CSS3 Viewport-percentage feature allows us to size elements relative to the viewport width or height. The viewport units for CSS are 1vw (1% of viewport width) and 1vh (1% of viewport height). To get the screen width in CSS, we can use the vw units.

By using 100vw, we are telling the browser that we want the container to be 100% of the viewport width, which is the full width of the screen.

One thing to keep in mind when using vw units is that they do not take into account the size of the scrollbar. This means that if your design relies on the scrollbar, you will need to make some adjustments to ensure that everything fits properly.

Using the Width Property to Get Screen Width

The width property sets an element’s width in CSS. We can use this property to get the total width of the user’s screen in pixels.

By using 100%, we are telling the browser that we want the container to be 100% of its parent element’s width, which in this case is the full screen width.

One thing to keep in mind when using the width property is that it can be affected by the box-sizing property. If the box-sizing property is set to border-box, the width property will include the padding and border of the element, which may affect your design.

HTML : How to get current screen width in CSS?

HTML : how to get current screen width in css ? [ Gift : Animated Search Engine : https Duration: 1:30

Using JavaScript to Get Screen Size

In addition to CSS, we can also use JavaScript to get the screen size. We can use window.innerWidth and window.innerHeight to get the current screen size of a page. To get the window width and height, use screen.availWidth or screen.availHeight respectively. We can also use screen.width to get the screen’s width with JavaScript.

var screenWidth = window.innerWidth; var screenHeight = window.innerHeight; 

By using the window.innerWidth and window.innerHeight properties, we are getting the width and height of the viewport, which is the area where the content is displayed. This means that it does not include the size of the browser’s toolbar or any other UI elements.

Understanding the device-width Feature

The device-width feature is specified as a value for CSS. It is used to set the width of the viewport, which is the area where the content is displayed.

@media screen and (max-device-width: 480px) < /* styles for devices with a maximum width of 480 pixels */ >

By using the device-width feature, we can create styles that only apply to devices with a certain width. This can be useful for creating a responsive design that works well on smaller screens.

Other helpful code samples for obtaining screen width in CSS

In Javascript , for instance, get screen width javascript code example

window.screen.width //or just screen.width

In Css as proof, css get screen height code sample

height: 100vh; /* 100% of viewport height */ width: 100vw; /* 100% of viewport width */

In Css as proof, width in % of a screen css code example

1vw = 1% of viewport width 1vh = 1% of viewport height

In Javascript , in particular, Get width of screen code sample

public innerWidth: any; ngOnInit()

Conclusion

In this blog post, we have discussed various ways to get the screen width using CSS and JavaScript. We have explored using viewport units, the width property, and the device-width feature to achieve this. It is important to consider best practices for responsive design , browser compatibility, and performance when using CSS for layout. By understanding these techniques, developers can create responsive designs that work across different devices and screen sizes.

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How to get current screen width in css in Html?

HTML is a markup language used to structure and display content on the web. CSS, or Cascading Style Sheets, is used to control the layout and appearance of elements on a web page.

To get the current screen width in CSS, there are a few different methods that can be used. Here are three examples:

Method 1: Using the width property

For example, if you want to target the body element, you would add the following code to your CSS file:

In this example, we are setting the width of the body element to 100%, which will make it the same width as the screen.

Method 2: Using JavaScript

For example, if you want to target the body element, you would add the following code to your HTML file:

var screenWidth = window.innerWidth;

• Step 3 — Use the getElementById method to target the element you want to set the width of, and the style property to set the width

document.getElementById("myBody").style.width = screenWidth + "px";

This will set the width of the element with the id «myBody» to the current screen width.

Method 3: Using media queries

This media query will apply the CSS inside the curly braces only when the screen width is 600px or less.

@media (max-width: 600px) < body < width: 100%; >> @media (min-width: 601px) and (max-width: 900px) < body < width: 80%; >>

This will set the width of the body element to 100% when the screen width is 600px or less, and 80% when the screen width is between 601px and 900px.

These are just a few examples of how to get the current screen width in CSS. Depending on your specific use case and the tools you are using, there may be other methods that are more appropriate. The important thing is to understand the concepts behind each method, and how to apply them to your specific project.

It is worth noting that the method you choose will depend on what you are trying to achieve and the tools you are using. The width property method is a simple and straight forward method that doesn’t require any additional tools or libraries, and is supported by all modern browsers. However, it has a limitation in that it can only be used to set the width of a single element.

The JavaScript method is a more dynamic and flexible method that can be used to set the width of multiple elements and can be combined with other JavaScript code to create more complex interactions. However, it does require some knowledge of JavaScript and can be more complex to implement.

The media query method is a powerful tool that allows you to create responsive designs that adjust to different screen sizes. This method is also supported by all modern browsers, but it can be complex to implement if you have many different screen sizes to target.

In any case, It’s important to note that these examples are not the only ways to get current screen width in CSS, and there are other ways to achieve this.

For example, you can use libraries such as Bootstrap, Foundation or Bulma, which are pre-made collections of CSS and JavaScript that can help you quickly create responsive designs.

In addition, you can use the CSS variables(custom properties) to store the width and use it across your css.

It’s a good practice to try different ways and choose the one that best fits your project’s requirements.

Conclusion

To summarize, there are several ways to get the current screen width in CSS, including using the width property, JavaScript, and media queries. Each method has its own advantages and limitations, and the choice of which method to use will depend on the specific requirements of your project. The width property method is a simple and straightforward method that is supported by all modern browsers, while the JavaScript method is more flexible and dynamic but requires some knowledge of JavaScript. The media query method is a powerful tool for creating responsive designs that adjust to different screen sizes but can be complex to implement. Additionally, you can use pre-made libraries such as Bootstrap, Foundation, or Bulma, or even CSS variables to store and use the width across your CSS. It’s a good practice to try different approaches and choose the one that best fits your project’s requirements.

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