NoMoney

<a href="#" class="brand-logo center"><i class="material-icons">cloud</i>Logo</a>

var html = document.createElement('div');

html.innerHTML = '<div id="content"></div>';

console.dir(html.children[0]);

<div class="div">div</div>
<a href="#" class="close"> Закрыть </a>

var closeBtn = document.getElementsByClassName('close')[0];

closeBtn.addEventListener('click', function() {
    document.getElementsByClassName('div')[0].style.display = 'none';
});