.tbl_frm011 {display:flex;justify-content:flex-start;align-items: flex-start; width:100%;margin:50px 0 30px 0;}
#mainImg {text-align:center;}
#mainImg img {width:780px;height:558px;object-fit: cover;}
#imgList {height:auto;list-style:none;margin-left:10px;display:grid;grid-template-columns: repeat(2,1fr);grid-template-rows: repeat(5, 105px);grid-gap:8px;}
#imgList li {border:1px solid #EEE;}
#imgList li img {width:105px;height:105px;}

@media (max-width:1366px) {
    .tbl_frm011 {flex-direction: column;}
    #imgList {grid-template-columns: repeat(5,1fr);grid-template-rows: repeat(2, 105px);grid-gap:8px;margin-top:20px;}
}