How to overlay image on a custom carousel? - html

Question

I have a custom carousel from here.
I would like to overlay an image on the top left corner of the carousel.
I have searched all over but nothing works with my carousel because it always deforms it.
<!-- Carousel -->
<header>
<div id="carouselExampleIndicators" class="carousel slide" data-ride="carousel">
<ol class="carousel-indicators">
<li data-target="#carouselExampleIndicators" data-target="#mycarousel" data-slide-to="0" class="active"></li>
<li data-target="#carouselExampleIndicators" data-target="#mycarousel" data-slide-to="1"></li>
<li data-target="#carouselExampleIndicators" data-target="#mycarousel" data-slide-to="2"></li>
</ol>
<div class="carousel-inner" role="listbox">
<!-- Slide One - Set the background image for this slide in the line below -->
<div class="carousel-item active" style="background-image: url('images/c1.jpg')">
<div class="carousel-caption d-none d-md-block">
<h2 class="display-4">First Slide</h2>
<p class="lead">This is a description for the first slide.</p>
</div>
</div>
<!-- Slide Two - Set the background image for this slide in the line below -->
<div class="carousel-item" style="background-image: url('images/c2.jpg')">
<div class="carousel-caption d-none d-md-block">
<h2 class="display-4">Second Slide</h2>
<p class="lead">This is a description for the second slide.</p>
</div>
</div>
<!-- Slide Three - Set the background image for this slide in the line below -->
<div class="carousel-item" style="background-image: url('images/c3.jpg')">
<div class="carousel-caption d-none d-md-block">
<h2 class="display-4">Third Slide</h2>
<p class="lead">This is a description for the third slide.</p>
</div>
</div>
</div>
<a class="carousel-control-prev" href="#carouselExampleIndicators" role="button" data-slide="prev">
<span class="carousel-control-prev-icon" aria-hidden="true"></span>
<span class="sr-only">Previous</span>
</a>
<a class="carousel-control-next" href="#carouselExampleIndicators" role="button" data-slide="next">
<span class="carousel-control-next-icon" aria-hidden="true"></span>
<span class="sr-only">Next</span>
</a>
</div>
</header>
<div class="logo">
<img src="images/logo.png">
</div>
/* css */
.carousel-item {
height: 100vh;
min-height: 350px;
background: no-repeat center center scroll;
-webkit-background-size: cover;
-moz-background-size: cover;
-o-background-size: cover;
background-size: cover;
}
#logo{
position: absolute;
top: 0;
left: 0;
}
The image simply goes under the carousel, instead of overlaying it.
jfiddle

Answer 1

The logo is a class in your HTML code and in CSS it is selected as ID
so, the code will be:
.logo {
.....
}
instead of
#logo {
.....
}

Answer 2

No parent element is positioned appropriately (relatively). Wrap the code in a container and position the container relatively, and then the div(child of the wrapper) with the image inside of it will act accordingly. Or, stick the div inside the header so the logo div is the child of the header.