Div inside a table-cell

how to make the div 100% height?

by rob_st

HTML

<div id="sidebar-category_1" class="sidebar-category">
				<div id="heading_1" class="sidebar-heading">
					<h2>Heading_1 (Pictures)</h2>
				</div>
				<div id="contents_1" class="sidebar-contents inactive">
					<table id="pictures" class="">
					<tr id="picture_row_1">
						<td class="entry picture" style=""><div class="picture wrapper">
							<div class="entry picture" style="">
								<img class="picture" src="./images/150x150.jpg" width="150" height="150"></img>
							</div>
								<div class="entry picture infobox" style="">
									<a href="#" class="entry">
										<h3 class="entry picture headline">contents_0 alpha headline</h3>
										<div class="view picture">
											<span class="comments_amount">5</span>
											<span class="tdnk info">Bild zeigen</span>
										</div>
									</a>
							</div></div>
						</td>
						<td class="entry picture" style=""><div class="picture wrapper">
								<div class="entry picture" style="">
							<img class="picture" src="./images/150x71.jpg" width="150" height="71"></img>
							</div>
							<div class="entry picture infobox">
								<a href="#" class="entry">
									<h3 class="entry picture headline">contents_0 beta headline</h3>
									<div class="view picture">
										<span class="comments_amount">5</span>
										<span class="pictures info">Bild zeigen</span>
									</div>
								</a>
							</div></div>
						</td>
					</tr>
					<tr id="picture_row_2">
						<td class="entry picture" style=""><div class="picture wrapper">
								<div class="entry picture" style="">
							<img class="picture" src="./images/150x200.jpg" width="150" height="200"></img></div>
							<div class="entry picture infobox">
								<a href="#" class="entry">
									<h3 class="entry picture headline">contents_0 gamma headline</h3>
									<div class="view picture">
										<span class="comments_amount">5</span>
										<span class="pictures info">Bild...

CSS

td.picture {
	border-radius: 3px;
	box-shadow: 3px 2px 6px rgba(0,0,0,0.6);
}

h3.picture.headline {
	border-bottom-left-radius: 3px;
	border-bottom-right-radius: 3px;
	z-index: 1;
	font-size: 1.1em;
	line-height: 1.1em;
	padding: 0.7em 0.25em 0.2em;
	margin: 0;
	color: #fff;
}

.picture.infobox {
	opacity: 0;
	-webkit-transition: all 0.2s ease-in;
	-moz-transition: all 0.2s ease-in;
	-o-transition: all 0.2s ease-in;
	-ms-transition: all 0.2s ease-in;
	transition: all 0.2s ease-in;
	background: url(data:image/svg+xml;base64,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);
	background: -moz-linear-gradient(top,  rgba(255,255,255,0) 0%, rgba(0,0,0,0) 1%, rgba(0,0,0,0.02) 7%, rgba(0,0,0,0.11) 20%, rgba(0,0,0,0.59) 74%, rgba(0,0,0,0.7) 90%, rgba(0,0,0,0.75) 100%);
	background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,rgba(255,255,255,0)), color-stop(1%,rgba(0,0,0,0)), color-stop(7%,rgba(0,0,0,0.02)), color-stop(20%,rgba(0,0,0,0.11)),...