Div background-image isn't showing - html

Question

I wanted to put a background image inside the div "pageIntro". I've tried setting the background color to transparent, checked the image file path numerous times (it is certainly correct as when I click it in my code using vsCode it pops the correct image).
Note: putting a background color works fine
screensnip of the div with NO background color. Background-image is set to '/img/home/flower-cup.jpg'.
screensnip of the div with GOLD background color. Background-image is still set to '/img/home/flower-cup.jpg'.
Here's the CSS of the div and all the elements inside it:
div.pageIntro {
position: relative;
background-image: url('/img/home/flower-cup.jpg') ;
background-repeat: no-repeat;
background-size: cover;
max-width: 100%;
width: 100vw;
height: 100vh;
z-index: 001;
text-align: center;
}
.introDiv {
background-color: black;
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
text-align: center;
z-index: 002;
}
.introText {
font-weight: bold;
font-family: "eczar";
color: whitesmoke;
font-size: 50px;
z-index: 002;
}
.subIntroButton {
position: relative;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
background-color:rgba(0, 0, 0, 0.1);
width: 150px;
border-style: solid;
border-radius: 5%;
border-color: whitesmoke;
border-width: 2px;
font-weight: bold;
font-family: Arial, Helvetica, sans-serif;
text-align: center;
color: whitesmoke;
padding: 10px 10px;
}
Here's the HTML:
<div class='pageIntro'>
<div class="introDiv">
<p class='introText'> You deserve it. </p>
<a href="menu.html" style="text-decoration : none">
<div class='subIntroButton'> check treats </div>
</a>
</div>
<span class="blinking" href="javascript:"><img src="img/arrow-down.png" style="position: relative; bottom: 12%; width: 40px"></span></div>
</div>
Thank you very much :)
UPDATE:
Here's what it looks like when putting the background-image on BOTH inner and outer div. Unfortunately, it only works on the inner.

Answer 1

Issue is with your Image Relative Path i just tried you code with an online image path its working fine.
div.pageIntro {
position: relative;
background-image: url('https://images.pexels.com/photos/531880/pexels-photo-531880.jpeg?auto=compress&cs=tinysrgb&dpr=1&w=500') ;
background-repeat: no-repeat;
background-size: cover;
max-width: 100%;
width: 100vw;
height: 100vh;
z-index: 001;
text-align: center;
}
.introDiv {
background-color: black;
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
text-align: center;
z-index: 002;
}
.introText {
font-weight: bold;
font-family: "eczar";
color: whitesmoke;
font-size: 50px;
z-index: 002;
}
.subIntroButton {
position: relative;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
background-color:rgba(0, 0, 0, 0.1);
width: 150px;
border-style: solid;
border-radius: 5%;
border-color: whitesmoke;
border-width: 2px;
font-weight: bold;
font-family: Arial, Helvetica, sans-serif;
text-align: center;
color: whitesmoke;
padding: 10px 10px;
}
<div class='pageIntro'>
<div class="introDiv">
<p class='introText'> You deserve it. </p>
<a href="menu.html" style="text-decoration : none">
<div class='subIntroButton'> check treats </div>
</a>
</div>
<span class="blinking" href="javascript:"><img src="img/arrow-down.png" style="position: relative; bottom: 12%; width: 40px"></span></div>
</div>

Answer 2

Hi As I can see your relative path.
if the image forlder is in same path of your html
What i can see error in your HTML. Which is span is not properly closed with a and img tag.
<div class='pageIntro'>
<div class="introDiv">
<p class='introText'> You deserve it. </p>
<a href="menu.html" style="text-decoration : none">
<div class='subIntroButton'> check treats </div>
</a>
</div>
<span class="blinking" href="javascript:"><img src="img/arrow-down.png" style="position: relative; bottom: 12%; width: 40px"/></span>
</div>
you can use .
div.pageIntro {
position: relative;
background-image: url('./img/home/flower-cup.jpg') ;
background-repeat: no-repeat;
background-size: cover;
max-width: 100%;
width: 100vw;
height: 100vh;
z-index: 001;
text-align: center;
}
Or if its one above your path you can use ..
div.pageIntro {
position: relative;
background-image: url('../img/home/flower-cup.jpg') ;
background-repeat: no-repeat;
background-size: cover;
max-width: 100%;
width: 100vw;
height: 100vh;
z-index: 001;
text-align: center;
}
I have created one JS fiddle