.post-offer{
    position: relative;
    display: block;
    border-radius: 8px;
    max-width: 100%;
}

.post-offer::before {
    content: '';
    border-radius: 8px;
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
    background: -webkit-gradient(linear,left top,left bottom,color-stop(1%,rgba(20,20,20,0)),color-stop(0,rgba(20,20,20,0)),color-stop(100%,#141414),to(#141414));
    background: linear-gradient(to bottom,rgba(20,20,20,0) 30%,rgba(20,20,20,0) 0,#141414 100%,#141414 100%);
    -webkit-transition: opacity .3s ease-in-out;
    -moz-transition: opacity .3s ease-in-out;
    -ms-transition: opacity .3s ease-in-out;
    -o-transition: opacity .3s ease-in-out;
    transition: opacity .3s ease-in-out;
}

.post-offer .container-img{
    max-width: 100%;
    aspect-ratio: 16 / 9;
}

.post-offer .container-img img{
    border-radius: 8px;
    width: 100%;
    height: auto;
    max-height: 100%;
    object-fit: cover;
}

.post-offer .cta-offer {
    display: inline-block;
    background-color: var(--paletteColor1);
    padding: 15px 20px;
    border-radius: 15px;
    color: #fff;
    font-size: 16px;
    line-height: 16px;
    z-index: 2;
    position: absolute;
    bottom: 15px;
    left: 50%;
    transform: translateX(-50%);
    min-width: 180px;
    text-align: center;
}