> For the complete documentation index, see [llms.txt](https://javascriptuse.gitbook.io/javascript/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://javascriptuse.gitbook.io/javascript/landscape-and-and-portrait-ok-vieclam123.vn.md).

# Landscape && Portrait (ok) job247.vn

https\://stackoverflow\.com/questions/14019939/window-orientation-returns-different-values-in-ios-and-android

```
$(document).ready(function() {
            window.addEventListener("orientationchange", centerLoginBox);
            window.addEventListener("load", centerLoginBox);
        });

        function centerLoginBox() {
            if (window.orientation == 90 || window.orientation == -90) { //Landscape Mode
                $('#loginbox').css('margin-top', '20%');
                alert(window.orientation);
            }
            else if (window.orientation == 0 || window.orientation == 180) { //Portrait Mode
                $('#loginbox').css('margin-top', '40%');
                alert(window.orientation);
            }
```