Where are the src and srcset sizes coming from?

1. What is the difference between SRC and Srcset?
2. What is Srcset in IMG tag?
3. How do you make a Srcset?
4. Why you would use a Srcset attribute in an image tag explain the process the browser uses when evaluating the content of this attribute?
5. What is 2x in Srcset?
6. What is the use of Srcset?
7. Can I use Srcset and sizes?
8. How do I know if Srcset is working?
9. Should I use picture tag?
10. What is Bootstrap styling?
11. How do I use Srcset in react?
12. What is HTML viewport?

What is the difference between SRC and Srcset?

The srcset attribute allows you to specify a list of image file URLs, along with size descriptions. Yo ualso need to still use the src attribute to identify a “default” image source, to be used in browsers that don't support srcset .

What is Srcset in IMG tag?

The srcset attributes contain the path to the image to display. Just as we saw with <img> above, <source> can take a srcset attribute with multiple images referenced, as well as a sizes attribute. So, you could offer multiple images via a <picture> element, but then also offer multiple resolutions of each one.

How do you make a Srcset?

The srcset Attribute:

1. for a device-pixel ratio of 1, the image space-needle. jpg will be used.
2. for a device-pixel ratio of 2, the image space-needle-2x. jpg will be used.
3. for a device-pixel ratio of 3, the image space-needle-hd. jpg will be used.

Why you would use a Srcset attribute in an image tag explain the process the browser uses when evaluating the content of this attribute?

srcset allows you to define a list of different image resources along with size information so that browser can pick the most appropriate image based on the actual device's resolution. The actual width of the image or display density: Either using display density descriptor, for example, 1.5x , 2x etc.

What is 2x in Srcset?

The srcset Attribute.

On regular resolution displays, the 1x variant of the srcset will be used [1x image]. On displays with 2 device pixels per CSS pixel, the 2x variant of the srcset will be used [2x image].

What is the use of Srcset?

The srcset attribute specifies the URL of the image to use in different situations. This attribute is required when <source> is used in <picture> .

Can I use Srcset and sizes?

With srcset and sizes it is possible to offer multiple sizes of the same image. The browser does the calculation (yeah!) and chooses the best size to display to the user. Browser support of srcset and sizes is good and the fallback is perfect.

How do I know if Srcset is working?

5 Answers. The image has a property currentSrc, you can log it or inspect it with several tools: In chrome developer tools inspect the element, then click the properties tab. In Firefox developer tools inspect the element, right click and select DOM from the context menu.

Should I use picture tag?

The browser has no discretion to make smart decisions about what to download based on user preference, network, etc. You should use the power to dictate what image gets downloaded sparingly. In fact, you should only use it when you're solving for art direction, not for resolution switching.

What is Bootstrap styling?

A Bootstrap theme is a package containing CSS, HTML, and JavaScript code used for styling. Bootstrap themes also feature various UI components and page layouts that can be employed to create websites. You can think of them as website templates created with Bootstrap in mind.

How do I use Srcset in react?

Enter React srcset

A while ago, the srcset attribute was introduced on <img> tags. This is a powerful attribute which enables the browser to determine which image to serve the user! No javascript, no waiting for page to load! You can also check out the React Image Srcset package by Crystallize.

What is HTML viewport?

The viewport is the user's visible area of a web page. It varies with the device - it will be smaller on a mobile phone than on a computer screen. You should include the following <meta> element in all your web pages: <meta name="viewport" content="width=device-width, initial-scale=1.0">