@media all and (-ms-high-contrast: none), (-ms-high-contrast: active) {
    .sin-main {
        display: flex;
    }
    .sin-main .aside {
        flex-shrink: 0;
    }
    .sin-main .main-col {
        flex: 1;
    }
    .bg-dideo{
        height: auto !important;
    }
}

@media (max-width:1200px) and (-ms-high-contrast: none), (-ms-high-contrast: active) {
    .sin-main .aside {
        flex-shrink: 3;
    }
}

.contact .item .box1, .contact .item .box2{

}