Font size in Paralax Section (hero image only)

Hi there,
I have changed the font size of the text of the hero image with the following CSS.
However it has also changed the fonts sizes for other headings on subsequent paralax widgets on the homepage.
How do I limit this change ONLY to the top hero text?
See https://hopenetsa.org.au

/Hero image title edit/
.image-bg h1 {
color: #00000;
font-size: 100px;
font-weight: bold;
text-shadow: 4px 3px 2px #000000;
}

Good morning

This is the correct code:

/Hero image title edit/
#shapely_home_parallax-2 .image-bg h1 {
color: #000000;
font-size: 100px;
font-weight: bold;
text-shadow: 4px 3px 2px #000000;
}