Untitled

<!DOCTYPE html>
<html>


<body>

<p id="Tekstas">Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book.</p>

<div id="myDiv"></div>
<br>

<button type="button" onclick="Geltona()">Geltona</button>

<script>
function Geltona() {
  document.getElementById("Tekstas").style.color = "#FFFF00";
}
</script>

<button type="button" onclick="Zalia()">Žalia</button>

<script>
function Zalia() {
  document.getElementById("Tekstas").style.color = "#7CFC00";

}
</script>
<button type="button" onclick="Raudona()">Raudona</button>


<script>
function Raudona() {
  document.getElementById("Tekstas").style.color = "#ff0000";
}
</script>


</body>
</html>