darktable_to_lightgallery/res/galleryindex.css

         #header {
             /* background-image: url("header/header.jpg"); */
         }
         #header h1 {
             height: 2.0em;
         }
         .img-wrapper {
              width: 100%;
              height: 100%;
              position: relative;
              display: inline;
         }
         img {
             width: 100%
             height: 100%;
             opacity: 1;
         }
         img:hover{
             opacity: .3;
             color: black;
         }
         a:link, .p a:visited, .p a:hover, .p a:active {
            color:white;
            text-decoration: none;
         }
         .p {
             padding: 0.5em;
             color: white;
             position: absolute;
             top: -100px;
             left: 0px;
             font-size: 29px;
             display: inline-block;
             /* text-align: center; */
             position: absolute;
             top: 50%;
             left: 50%;
             transform: translate(-50%, -50%);
         }