Script detecting mobile device
<script>
if(/Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i.test(navigator.userAgent)){
document.currentScript.outerHTML = `[img=images/mapka_apartmany.jpeg scale=5% float=right]`;
}else{
document.currentScript.outerHTML = `[img=images/mapka_apartmany.jpeg scale=18% float=right]`;
}
</script>
CSS: change the background color when the browser window is less 400px
@media only screen and (max-width: 400px) {
body {
background-color: lightblue;
}
}
Codepen: https://codepen.io/L … r-Ludvik/pen/RNbjeOV
More example: https://www.w3school … ref/atrule_media.php
This script also detecting mobile device:
<script>
if (window.matchMedia("(max-width: 400px)").matches) {
// Viewport is less or equal to 400 pixels on mobile
document.currentScript.outerHTML = `less or equal to 400`
} else {
// Viewport is greater than 400 pixels on desktop
document.currentScript.outerHTML = `greater than 400`
}
document.write("<br>");
document.write(document.documentElement["clientWidth"]);
document.write("<br>");
document.write(document.body["scrollWidth"]);
</script>
