<!DOCTYPE html><html><head><style> * { font: 20px 'SerenitySans'; } input { width: 200px; } </style></head><body><input id="foo"> <script> let foo = document.getElementById("foo"); foo.value = "FAIL"; document.body.offsetWidth; // Force a layout document.addEventListener("DOMContentLoaded", function() { foo.value = "PASS"; }); </script>
