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$('.carousel').carousel({
    interval: 5000 //changes the speed
})

/* Home Page Carousel */

header.carousel {
    height: 50%;
}

header.carousel .item,
header.carousel .item.active,
header.carousel .carousel-inner {
    height: 100%;
}

header.carousel .fill {
    width: 100%;
    height: 100%;
    background-position: center;
    background-size: cover;
}

<!-- Header Carousel -->
<header id="myCarousel" class="carousel slide">
    <!-- 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>

    <!-- Wrapper for slides -->
    <div class="carousel-inner">
        <div class="item active">
            <div class="fill" style="background-image:url('http://placehold.it/1900x1080&text=Slide One');"></div>
            <div class="carousel-caption">
                <h2>Caption 1</h2>
            </div>
        </div>
        <div class="item">
            <div class="fill" style="background-image:url('http://placehold.it/1900x1080&text=Slide Two');"></div>
            <div class="carousel-caption">
                <h2>Caption 2</h2>
            </div>
        </div>
        <div class="item">
            <div class="fill" style="background-image:url('http://placehold.it/1900x1080&text=Slide Three');"></div>
            <div class="carousel-caption">
                <h2>Caption 3</h2>
            </div>
        </div>
    </div>

    <!-- Controls -->
    <a class="left carousel-control" href="#myCarousel" data-slide="prev">
        <span class="icon-prev"></span>
    </a>
    <a class="right carousel-control" href="#myCarousel" data-slide="next">
        <span class="icon-next"></span>
    </a>
</header>