.sub-banner {
    height: 40vh;
    position: relative;
}

.sub-banner .banner {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 0;
}

.sub-banner .banner .filter {
    position: absolute;
    content: "";
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: 9;
}

.sub-banner .banner .filter:after {
    position: absolute;
    content: "";
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    background: linear-gradient(0deg, rgba(0,0,0,1) 0%, rgba(0,0,0) 100%);
    opacity: .5;
}

.sub-banner .container {
    position: relative;
    height: 100%;
    padding-top: 160px;
    z-index: 9;
}

#sticky-div.sticky {
    position: sticky;
    top: 160px;
}

#sticky-div {
    z-index: 1;
    position: relative;
}

.sidebar {
    background: #fff;
    -webkit-box-shadow: 0px 5px 25px -2px rgb(0 0 0 / 15%);
    -moz-box-shadow: 0px 5px 25px -2px rgba(0, 0, 0, 0.15);
    box-shadow: 0px 5px 25px -2px rgb(0 0 0 / 15%);
    border-left: 5px solid #854c99;
}

.sidebar a.btn {
    margin-top: 10px;
    width: 100%;
}

.img-style-left {
    position: relative;
    margin-right: 10px;
    margin-bottom: 15px;
    line-height: 0;
}

.img-style-left::after {
    position: absolute;
    content: "";
    width: 100%;
    height: 100%;
    top: 10px;
    left: 10px;
    background: #854c99;
}

.img-style-left img {
    position: relative;
    z-index: 2;
}

.img-style-right {
    position: relative;
    margin-left: 10px;
    margin-bottom: 15px;
    line-height: 0;
}

.img-style-right::after {
    position: absolute;
    content: "";
    width: 100%;
    height: 100%;
    top: 10px;
    right: 10px;
    background: #854c99;
}

.img-style-right img {
    position: relative;
    z-index: 2;
}