Wordpress Lightbox CSS issue - html

Question

I'm using a lightbox system on a page and I'm trying to get an image to go half inside the content of the lightbox and half above it - Like This
I've been editing some of the css to add z-index but that isnt helping.
Current HTML
<div class="nivo-lightbox-content"><div class="nivo-lightbox-inline" style="position: relative; top: 50%; margin-top: -281.95px;"><div id="s-b" style="" class="popuptxt">
<img src="https://example.com/b/wp-content/uploads/2022/05/s_b_popup.jpg" class="popupimg"><br>
<h3>SB</h3>
<h4>MD</h4>
<img loading="lazy" src="https://example.com/b/wp-content/uploads/2022/05/logo.png" width="65px" height="65px"><br>
Test Text<br>
all goes here.
</div></div></div><div class="nivo-lightbox-title-wrap"></div>
and CSS Code
.nivo-lightbox-overlay {
position: fixed;
top: 0;
left: 0;
z-index: 99998;
width: 100%;
height: 100%;
overflow: hidden;
visibility: hidden;
opacity: 0;
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
box-sizing: border-box;
}
.nivo-lightbox-overlay.nivo-lightbox-open {
visibility: visible;
opacity: 1;
}
.nivo-lightbox-wrap {
position: absolute;
top: 10%;
bottom: 10%;
left: 10%;
right: 10%;
}
.nivo-lightbox-content {
width: 100%;
height: 100%;
}
.nivo-lightbox-title-wrap {
position: absolute;
bottom: 0;
left: 0;
width: 100%;
z-index: 99999;
text-align: center;
}
.nivo-lightbox-nav { display: none; }
.nivo-lightbox-prev {
position: absolute;
top: 50%;
left: 0;
}
.nivo-lightbox-next {
position: absolute;
top: 50%;
right: 0;
}
.nivo-lightbox-close {
position: absolute;
top: 2%;
right: 2%;
}
.nivo-lightbox-image { text-align: center; }
.nivo-lightbox-image img {
max-width: 100%;
max-height: 100%;
width: auto;
height: auto;
vertical-align: middle;
}
.nivo-lightbox-content iframe {
width: 100%;
height: 100%;
}
.nivo-lightbox-inline,
.nivo-lightbox-ajax {
max-height: 100%;
overflow: auto;
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
box-sizing: border-box;
/* https://bugzilla.mozilla.org/show_bug.cgi?id=308801 */
}
.nivo-lightbox-error {
display: table;
text-align: center;
width: 100%;
height: 100%;
color: #fff;
text-shadow: 0 1px 1px #000;
}
.nivo-lightbox-error p {
display: table-cell;
vertical-align: middle;
}
/* Effects
**********************************************/
.nivo-lightbox-notouch .nivo-lightbox-effect-fade,
.nivo-lightbox-notouch .nivo-lightbox-effect-fadeScale,
.nivo-lightbox-notouch .nivo-lightbox-effect-slideLeft,
.nivo-lightbox-notouch .nivo-lightbox-effect-slideRight,
.nivo-lightbox-notouch .nivo-lightbox-effect-slideUp,
.nivo-lightbox-notouch .nivo-lightbox-effect-slideDown,
.nivo-lightbox-notouch .nivo-lightbox-effect-fall {
-webkit-transition: all 0.2s ease-in-out;
-moz-transition: all 0.2s ease-in-out;
-ms-transition: all 0.2s ease-in-out;
-o-transition: all 0.2s ease-in-out;
transition: all 0.2s ease-in-out;
}
/* fadeScale */
.nivo-lightbox-effect-fadeScale .nivo-lightbox-wrap {
-webkit-transition: all 0.3s;
-moz-transition: all 0.3s;
-ms-transition: all 0.3s;
-o-transition: all 0.3s;
transition: all 0.3s;
-webkit-transform: scale(0.7);
-moz-transform: scale(0.7);
-ms-transform: scale(0.7);
transform: scale(0.7);
}
.nivo-lightbox-effect-fadeScale.nivo-lightbox-open .nivo-lightbox-wrap {
-webkit-transform: scale(1);
-moz-transform: scale(1);
-ms-transform: scale(1);
transform: scale(1);
}
/* slideLeft / slideRight / slideUp / slideDown */
.nivo-lightbox-effect-slideLeft .nivo-lightbox-wrap,
.nivo-lightbox-effect-slideRight .nivo-lightbox-wrap,
.nivo-lightbox-effect-slideUp .nivo-lightbox-wrap,
.nivo-lightbox-effect-slideDown .nivo-lightbox-wrap {
-webkit-transition: all 0.3s cubic-bezier(0.25, 0.5, 0.5, 0.9);
-moz-transition: all 0.3s cubic-bezier(0.25, 0.5, 0.5, 0.9);
-ms-transition: all 0.3s cubic-bezier(0.25, 0.5, 0.5, 0.9);
-o-transition: all 0.3s cubic-bezier(0.25, 0.5, 0.5, 0.9);
transition: all 0.3s cubic-bezier(0.25, 0.5, 0.5, 0.9);
}
.nivo-lightbox-effect-slideLeft .nivo-lightbox-wrap {
-webkit-transform: translateX(-10%);
-moz-transform: translateX(-10%);
-ms-transform: translateX(-10%);
transform: translateX(-10%);
}
.nivo-lightbox-effect-slideRight .nivo-lightbox-wrap {
-webkit-transform: translateX(10%);
-moz-transform: translateX(10%);
-ms-transform: translateX(10%);
transform: translateX(10%);
}
.nivo-lightbox-effect-slideLeft.nivo-lightbox-open .nivo-lightbox-wrap,
.nivo-lightbox-effect-slideRight.nivo-lightbox-open .nivo-lightbox-wrap {
-webkit-transform: translateX(0);
-moz-transform: translateX(0);
-ms-transform: translateX(0);
transform: translateX(0);
}
.nivo-lightbox-effect-slideDown .nivo-lightbox-wrap {
-webkit-transform: translateY(-10%);
-moz-transform: translateY(-10%);
-ms-transform: translateY(-10%);
transform: translateY(-10%);
}
.nivo-lightbox-effect-slideUp .nivo-lightbox-wrap {
-webkit-transform: translateY(10%);
-moz-transform: translateY(10%);
-ms-transform: translateY(10%);
transform: translateY(10%);
}
.nivo-lightbox-effect-slideUp.nivo-lightbox-open .nivo-lightbox-wrap,
.nivo-lightbox-effect-slideDown.nivo-lightbox-open .nivo-lightbox-wrap {
-webkit-transform: translateY(0);
-moz-transform: translateY(0);
-ms-transform: translateY(0);
transform: translateY(0);
}
/* fall */
.nivo-lightbox-body-effect-fall .nivo-lightbox-effect-fall {
-webkit-perspective: 1000px;
-moz-perspective: 1000px;
perspective: 1000px;
}
.nivo-lightbox-effect-fall .nivo-lightbox-wrap {
-webkit-transition: all 0.3s ease-out;
-moz-transition: all 0.3s ease-out;
-ms-transition: all 0.3s ease-out;
-o-transition: all 0.3s ease-out;
transition: all 0.3s ease-out;
-webkit-transform: translateZ(300px);
-moz-transform: translateZ(300px);
-ms-transform: translateZ(300px);
transform: translateZ(300px);
}
.nivo-lightbox-effect-fall.nivo-lightbox-open .nivo-lightbox-wrap {
-webkit-transform: translateZ(0);
-moz-transform: translateZ(0);
-ms-transform: translateZ(0);
transform: translateZ(0);
}
Any ideas what I'm missing?
I'm pretty sure it should just be a case of adding z-index to a couple of the classes but nothing seems to work - I just seem to be able to hide the image or move the image but not get it to display.