kenapa carousel lebarnya tidak mau mengikuti 100% layar pc?

Ini scriptnya

 		<div id="myCarousel" class="carousel slide" data-ride="carousel">

			<!-- Indicators -->
			<ol class="carousel-indicators">
				<li data-target="#myCarousel" data-slide-to="0" class="active"></li>
				<li data-target="#myCarousel" data-slide-to="1"></li>
				<li data-target="#myCarousel" data-slide-to="2"></li>
			</ol>

			<!-- carousel -->
			<div class="carousel-inner" role="listbox">
				<div class="item active">
					<img src="images/slide-3.jpg" alt="" class="img-responsive" >
					<div class="carousel-caption">

						<p>design.</p>
					</div>
				</div>
				<div class="item">
					<img src="images/slide-3.jpg" alt="" class="img-responsive">
					<div class="carousel-caption">
						<h3>T</h3>

					</div>
				</div>
				<div class="item">
				<img src="images/slide-3.jpg" alt="" class="img-responsive" >
					<div class="carousel-caption">
						<h3>T</h3>

					</div>
				</div>
			</div>

			<!-- next dan previous -->
			<a class="left carousel-control" href="#myCarousel" role="button" data-slide="prev">
				<span class="glyphicon glyphicon-chevron-left" aria-hidden="true"></span>
				<span class="sr-only">Previous</span>
			</a>
			<a class="right carousel-control" href="#myCarousel" role="button" data-slide="next">
				<span class="glyphicon glyphicon-chevron-right" aria-hidden="true"></span>
				<span class="sr-only">Next</span>
			</a>
		</div>
	</div>
   </div>

mohon bantuannya...