The Window.screenY read-only property returns the vertical distance, in CSS pixels of the top border of the user's browser from the top edge of the screen.
lLoc = window.screenY
lLoc is the number of CSS pixels from the top of the screen.| Specification | Status | Comment |
|---|---|---|
| CSS Object Model (CSSOM) View Module The definition of 'Window.screenY' in that specification. | Working Draft | Initial definition. |
| Feature | Chrome | Edge | Firefox (Gecko) | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|---|
| Basic support | (Yes) | (Yes) | (Yes) [1] | (Yes) | (Yes) | (Yes) |
| Feature | Android | Chrome for Android | Edge | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|---|---|
| Basic support | (Yes) | (Yes) | (Yes) | (Yes) [1] | (Yes) | (Yes) | (Yes) |
[1] Before Firefox 28, Gecko was using device pixels instead of CSS pixels; in other words, it was assuming a value of screenPixelsPerCSSPixel of 1 for any device.
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https://developer.mozilla.org/en-US/docs/Web/API/window/screenY