Get screen size with css

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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Responsive Web Design — Media Queries

It uses the @media rule to include a block of CSS properties only if a certain condition is true.

Example

If the browser window is 600px or smaller, the background color will be lightblue:

Add a Breakpoint

Earlier in this tutorial we made a web page with rows and columns, and it was responsive, but it did not look good on a small screen.

Media queries can help with that. We can add a breakpoint where certain parts of the design will behave differently on each side of the breakpoint.

Desktop

Phone

Use a media query to add a breakpoint at 768px:

Example

When the screen (browser window) gets smaller than 768px, each column should have a width of 100%:

@media only screen and (max-width: 768px) /* For mobile phones: */
[class*=»col-«] width: 100%;
>
>

Always Design for Mobile First

Mobile First means designing for mobile before designing for desktop or any other device (This will make the page display faster on smaller devices).

This means that we must make some changes in our CSS.

Instead of changing styles when the width gets smaller than 768px, we should change the design when the width gets larger than 768px. This will make our design Mobile First:

Example

/* For mobile phones: */
[class*=»col-«] width: 100%;
>

Another Breakpoint

You can add as many breakpoints as you like.

We will also insert a breakpoint between tablets and mobile phones.

Desktop

Tablet

Phone

We do this by adding one more media query (at 600px), and a set of new classes for devices larger than 600px (but smaller than 768px):

Example

Note that the two sets of classes are almost identical, the only difference is the name ( col- and col-s- ):

/* For mobile phones: */
[class*=»col-«] width: 100%;
>

It might seem odd that we have two sets of identical classes, but it gives us the opportunity in HTML, to decide what will happen with the columns at each breakpoint:

HTML Example

For desktop:

The first and the third section will both span 3 columns each. The middle section will span 6 columns.

For tablets:

The first section will span 3 columns, the second will span 9, and the third section will be displayed below the first two sections, and it will span 12 columns:

Typical Device Breakpoints

There are tons of screens and devices with different heights and widths, so it is hard to create an exact breakpoint for each device. To keep things simple you could target five groups:

Example

/* Small devices (portrait tablets and large phones, 600px and up) */
@media only screen and (min-width: 600px)

/* Medium devices (landscape tablets, 768px and up) */
@media only screen and (min-width: 768px)

/* Large devices (laptops/desktops, 992px and up) */
@media only screen and (min-width: 992px)

/* Extra large devices (large laptops and desktops, 1200px and up) */
@media only screen and (min-width: 1200px)

Orientation: Portrait / Landscape

Media queries can also be used to change layout of a page depending on the orientation of the browser.

You can have a set of CSS properties that will only apply when the browser window is wider than its height, a so called «Landscape» orientation:

Example

The web page will have a lightblue background if the orientation is in landscape mode:

Hide Elements With Media Queries

Another common use of media queries, is to hide elements on different screen sizes:

Example

/* If the screen size is 600px wide or less, hide the element */
@media only screen and (max-width: 600px) div.example display: none;
>
>

Change Font Size With Media Queries

You can also use media queries to change the font size of an element on different screen sizes:

Variable Font Size.

Example

/* If the screen size is 601px or more, set the font-size of

/* If the screen size is 600px or less, set the font-size of to 30px */
@media only screen and (max-width: 600px) div.example font-size: 30px;
>
>

CSS @media Reference

For a full overview of all the media types and features/expressions, please look at the @media rule in our CSS reference.

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