idやclassで見た目を変える

<p id="test">javascript勉強中だよ!</p>

<style tyip="test/css">
#test{color:red;}
</style>

<script>

console.log(document.getElementById("test"));

</script>

<script>
document.getElementById("test").textContent = "textContentでHTMLを書き換えています";
</script>