.grid-6x-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr; 
    grid-template-rows: 1fr 1fr;
    grid-gap: 30px;
}
.grid-6x-wrapper .post-item {
    position: relative;
}
.grid-6x-wrapper .post-item h3 {
    margin-bottom: 0;
    font-weight: 500;
}
.grid-6x-wrapper .post-item-1 {
    grid-row-start: 1;
    grid-column-start: 1;
    grid-row-end: 3; 
    grid-column-end: 3;
}
.grid-6x-wrapper .post-item-1 h3 {
    font-size: 36px;
}

.grid-6x-wrapper .post-item .ver-mas-simbol {
    position: absolute;
    right: 0;
    color: white;
    font-size: 60px;
    line-height: 45px;
    font-weight: 300;
    padding: 15px;
    z-index: 1;
}

.grid-6x-wrapper .post-item .inside-content__wrapper {
    padding: 24px;
    background: rgba(0, 0, 0, 0.35);
    text-decoration: none;
    color: white;
    display: flex;
    flex-direction: column;
    min-height: 100%;
    position: relative;
    top: 0;
    transition: all .5s ease-in;
    opacity: 1;
}
/*.grid-6x-wrapper .post-item-1 .inside-content__wrapper {
    opacity: 1;
}*/
.grid-6x-wrapper .post-item .inside-content__wrapper:hover {
    background: rgba(0, 0, 0, 0.75);
    opacity: 1;
}
.grid-6x-wrapper .post-item .inside-content__wrapper .inside-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
}

@media only screen and (max-width: 1023px) {

    .grid-6x-wrapper .post-item .inside-content__wrapper {
        padding: 15px;
    }

    .grid-6x-wrapper .post-item.post-item-1 h3 {
        font-size: 30px;
    }
    .grid-6x-wrapper .post-item h3 {
        font-size: 20px;
    }

}

@media only screen and (max-width: 782px) {

    .grid-6x-wrapper .post-item.post-item-1,
    .grid-6x-wrapper .post-item {
        grid-column: 1/ span 3;
    }

    .grid-6x-wrapper .post-item .inside-content__wrapper {
        background: rgba(0, 0, 0, 0.55);
        opacity: 1;
    }

}