Welcome to the HTML tutorial by Push Dev
What is HTML and why it's important to write semantic HTML, how to use tags, following conventions and apply best practices? Bear with us and we'll teach you how to code the best HTML pages.
<iframe id="exercise" width="1024" height="768"></iframe> <script> function getUrlVars() { let vars = {}; let parts = window.location.href.replace(/[?&]+([^=&]+)=([^&]*)/gi, function(m,key,value) { vars[key] = value; }); return vars; } const exerciseUrl = getUrlVars()['e']; exercise.src = exerciseUrl || 'exercise1.html'; </script>