botão HTML que oculta e mostre
<button onclick="toggleText()">button</button>
<p id="Myid">Text</p>
<script>
function toggleText(){
var x = document.getElementById("Myid");
if (x.style.display === "none") {
x.style.display = "block";
} else {
x.style.display = "none";
}
}
</script>
Hello There