<div id="app"></div> <script> window.onload = function(){ //画面解像度 var screenH = screen.height; var screenW = screen.width; //ブラウザ外側 var browserW = window.outerWidth; var browserH = window.outerHeight; //ブラウザ表示領域 var withoutBrowserElementsW = document.documentElement.clientWidth; var withoutBrowserElementsH = document.documentElement.clientHeight; var resultText = "<p>"; resultText += "画面解像度 横 " +
![OSやブラウザ要素の高さ・幅の計測とセーフエリア 2019 - Qiita](https://cdn-ak-scissors.b.st-hatena.com/image/square/681e65239a4f63509f3d64379adc0aad37315359/height=288;version=1;width=512/https%3A%2F%2Fqiita-user-contents.imgix.net%2Fhttps%253A%252F%252Fcdn.qiita.com%252Fassets%252Fpublic%252Farticle-ogp-background-412672c5f0600ab9a64263b751f1bc81.png%3Fixlib%3Drb-4.0.0%26w%3D1200%26mark64%3DaHR0cHM6Ly9xaWl0YS11c2VyLWNvbnRlbnRzLmltZ2l4Lm5ldC9-dGV4dD9peGxpYj1yYi00LjAuMCZ3PTk3MiZoPTM3OCZ0eHQ9T1MlRTMlODIlODQlRTMlODMlOTYlRTMlODMlQTklRTMlODIlQTYlRTMlODIlQjYlRTglQTYlODElRTclQjQlQTAlRTMlODElQUUlRTklQUIlOTglRTMlODElOTUlRTMlODMlQkIlRTUlQjklODUlRTMlODElQUUlRTglQTglODglRTYlQjglQUMlRTMlODElQTglRTMlODIlQkIlRTMlODMlQkMlRTMlODMlOTUlRTMlODIlQTglRTMlODMlQUElRTMlODIlQTIlMjAyMDE5JnR4dC1hbGlnbj1sZWZ0JTJDdG9wJnR4dC1jb2xvcj0lMjMyMTIxMjEmdHh0LWZvbnQ9SGlyYWdpbm8lMjBTYW5zJTIwVzYmdHh0LXNpemU9NTYmcz00ZDZiNDY5YjM5ZmZkMzg4NGEwNGJkMWFjYTkxM2Y5OQ%26mark-x%3D142%26mark-y%3D57%26blend64%3DaHR0cHM6Ly9xaWl0YS11c2VyLWNvbnRlbnRzLmltZ2l4Lm5ldC9-dGV4dD9peGxpYj1yYi00LjAuMCZoPTc2Jnc9NzcwJnR4dD0lNDB0ZWNobm90ZXdvcmsmdHh0LWNvbG9yPSUyMzIxMjEyMSZ0eHQtZm9udD1IaXJhZ2lubyUyMFNhbnMlMjBXNiZ0eHQtc2l6ZT0zNiZ0eHQtYWxpZ249bGVmdCUyQ3RvcCZzPWMwZDA0YmI1ODhlMjM1YWFmMDE4NGE0OTMyZDc3MDk4%26blend-x%3D142%26blend-y%3D486%26blend-mode%3Dnormal%26s%3D9dbf50633b7ba659ecd22bdd11fa18fa)