.bottom_image_sec{padding:60px 0;background-size:cover;background-repeat:no-repeat;background:#00467f}.inner_image{display:flex;flex-wrap:wrap;width:100%}.box-sec{width:23.5%;margin-right:2%;position:relative;margin-bottom:20px;z-index:99}.box-sec:nth-child(4n){margin-right:0}.box-sec:nth-child(4n)::after{display:none}@media screen and (max-width:767px){.box-sec{width:100%;margin-right:0;margin-bottom:20px;z-index:99;text-align:center}.box-sec img{max-width:300px;width:100%}.box-sec::after{left:50%;bottom:-10px;top:inherit;transform:translateX(-50%) rotate(90deg);width:28px}}