Sibling Selector in CSS

The sibling selector ~ allows you to select all elements that come after a given element within the same parent.

Example

Let's look at all the p tags that come after the h2 tags and color them red:

<div>
	<h2>text</h2>
	<p>
		+++
	</p>
	<p>
		+++
	</p>
	<p>
		+++
	</p>
</div>
<p>
	-
</p>

h2 ~ p {
	color: red;
}

Let's target all p tags that come after elements with class .test and color them red:

<div>
	<p class="test">
		text
	</p>
	<p>
		+++
	</p>
	<p>
		+++
	</p>
</div>
<p>
	---
</p>

.test ~ p {
	color: red;
}

Let's target all elements with class .elem that come after elements with class .test and color them red:

<div>
	<p class="test">
		text
	</p>
	<p class="elem">
		+++
	</p>
	<p>
		---
	</p>
	<p class="elem">
		+++
	</p>
</div>
<p>
	---
</p>

.test ~ .elem {
	color: red;
}

Given code:

<ul>
	<li>1</li>
	<li>2</li>
	<li>3</li>
	<li>4</li>
	<li id="elem">5</li>
	<li>6</li>
	<li>7</li>
	<li>8</li>
	<li>9</li>
</ul>

Write a selector that selects all elements immediately after the element #elem.