.ul-gallery {
    position: flex;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    margin: auto;
    margin-top: 30px;
    list-style: none;
    width: 1000px;
    height: 550px;
    border-radius: 3px;
    overflow: hidden;
    box-shadow: 1px 1px 3px 1px;
}


.li-gallery {
    position: relative;
    width: 190px;
    height: 550px;
    float: left;
    border-left: 1px solid white;
    -webkit-transition: all 0.7s;
    -moz-transition: all 0.7s;
    transition: all 0.7s;
    box-shadow: -2px 0 10px 2px;
}

.ul-gallery li:first-child {
    border: none;
}

.span-gallery {
    display: block;
    position: absolute;
    bottom: 0;
    width: 50%;
    color: white;
    white-space: nowrap;
    padding: 20px;
    background: -moz-linear-gradient(left, rgba(0, 0, 0, 0.65) 0%, rgba(0, 0, 0, 0) 100%);
    /* FF3.6+ */
    background: -webkit-gradient(linear, left top, right top, color-stop(0%, rgba(0, 0, 0, 0.65)), color-stop(100%, rgba(0, 0, 0, 0)));
    /* Chrome,Safari4+ */
    background: -webkit-linear-gradient(left, rgba(0, 0, 0, 0.65) 0%, rgba(0, 0, 0, 0) 100%);
    /* Chrome10+,Safari5.1+ */
    background: -o-linear-gradient(left, rgba(0, 0, 0, 0.65) 0%, rgba(0, 0, 0, 0) 100%);
    /* Opera 11.10+ */
    background: -ms-linear-gradient(left, rgba(0, 0, 0, 0.65) 0%, rgba(0, 0, 0, 0) 100%);
    /* IE10+ */
    background: linear-gradient(to right, rgba(0, 0, 0, 0.65) 0%, rgba(0, 0, 0, 0) 100%);
    /* W3C */
    filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#a6000000', endColorstr='#00000000', GradientType=1);
    /* IE6-9 */

}

.img-gallery {
    width: 800px;
    height: 550px;
}

.ul-gallery:hover li {
    width: 50px;
}


.ul-gallery li:hover {
    width: 750px;
}

.btngallery-info {
    background-color: aqua;
    place-content: center;
    margin-top: 30px;
    
}