.ltb ul {
    display: flex;
    flex-wrap: wrap;
    list-style-type: none;
}

.ltb li {
    height: 40vh;
    flex-grow: 1;
}

    li:last-child {
        
    }

.ltb img {
    max-height: 100%;
    min-width: 100%;
    object-fit: cover;
    vertical-align: bottom;
}


@media (max-aspect-ratio: 1/1) {
    .ltb li {
        height: 30vh;
    }
}



@media (max-height: 480px) {
    .ltb li {
        height: 80vh;
    }
}



@media (max-aspect-ratio: 1/1) and (max-width: 480px) {
    .ltb ul {
        flex-direction: row;
    }
    .ltb li {
        height: auto;
        width: 100%;
    }
    .ltb img {
        width: 100%;
        max-height: 75vh;
        min-width: 0;
    }
}