<input class="frase"><button class="boton">Copiar</button><span class="copia"></span>
<script>
var inputFrase = document.querySelector('.frase');
var boton = document.querySelector('.boton');
var copia = document.querySelector('.copia');
function botonHandler() {
copia.textContent = inputFrase.value;
inputFrase.value = "";
};
boton .addEventListener('click', botonHandler);
</script>
