.case_main {
    background-image: url(../images/about_bg_4.jpg);
    background-size: 100% 100%;
    position: relative;
    width: 100%;
}

.case_li li {
    /* float: left; */
    /* width: 33.33%; */
    height: auto;
    /* border-top: 1px #000 solid;
    border-left: 1px #000 solid; */
}

/* .case_li li:last-child {
    border-right: 1px #000 solid;
}

.case_li .li1,
.case_li .li2,
.case_li .li3 {
    border-bottom: 1px #000 solid;
} */


.img_container {
    position: relative;
    width: 100%;
    height: 260px;
    /* height: 100%; */
    cursor: pointer;
    overflow: hidden;
    /* border-radius: 5px; */
}

.img_container img {
    width: 100%;
    height: 100%;
    transition: all 0.6s ease-in-out;
    filter: brightness(90%);
}

.img_container:hover img {
    transform: scale(1.3);
}

.img_text {
    position: absolute;
    display: block;
    width: 100%;
    height: 50px;
    /* background-color: #fff; */
    top: 80%;
    transform: translateY(-80%);
    z-index: 33;
    color: #fff;
    font-size: 30px;
    user-select: none;
}