I'm Coding a sign in/sign up website, the css is very basic at this time along with basic js (I plan on polishing css). But I want to get the basic css done before working on html, one element of my website is an h3 element that I want to have a margin that pushes from the bottom of one of the selection divs but the margin is pushing from the top of the body rather than the containing div.
<div id="container">
<div id="leftFloat" class="50%">sign in</div>
<div id="rightFloat" class="50%">sign up</div>
<div id="rightFloat" class="50%">
<h2 id="selection" class="margin: 50px;">Pushes the container down rather than pushing itself down</h2>
</div>
</div>