Gallery image color overlay not fully covering photos on mobile view

I'm using code to make a caption and color overlay on my simple grid gallery images. It's working fine on desktop but on mobile the color overlay doesn't fully cover the image. 

https://leo-defensive-concepts.squarespace.com

pass: leo2023

.gallery-grid .gallery-caption {
  position: absolute;
  top: 0;
  left: 0;
background: rgba(0,0,0,0.4);
  // overlay color 
  height: 100%;
  padding: 0;
  opacity: 1;
  pointer-events: none;
}
.gallery-grid .gallery-caption-wrapper {
  display: flex;
  align-items: center !important; // center vertically 
  justify-content: center !important; // center horizontally
}
.gallery-grid .gallery-caption-content {
  font-size: 1rem !important; // caption font size
  font-weight: 600 !important;
  color: white; //caption font color 
  padding: 1vw; // padding around the caption
}
.gallery-grid-item {
  position: relative;
}
.gallery-grid-item img:hover
{transform:Scale(1.1);width:100%; height:100% 
overflow:hidden!important; transition-duration:1s} .gallery-grid-item {overflow:hidden!important}

Thank you Melody495, that worked perfect! 

@kacideiser glad it's working for you 🙂