.knowVIdeoHere {
    overflow: hidden;
    border-radius: 6px;
    transition: all 0.8s;    
    box-shadow: 0px 20px 40px #dbd6d6;
}

.knowVIdeoHere .btnTxtHere {
    padding: 20px 25px;
}
.knowVIdeoHere .btnTxtHere h4 {
    font-size: var(--fs20);
    color: var(--txt-darkblue);
    letter-spacing: 0.5px;
    font-weight: 500;
    margin: 0;
}
.watchVIdeo {
    position: absolute;
    display: flex;
    top: 0;
    height: 100%;
    width: 100%;
    justify-content: center;
    align-items: center;
    background-image: linear-gradient( 90deg , rgb(2 47 135 / 80%) 35%, rgb(7 121 219 / 80%) 100%);
    transform: scaleY(0);
    transition: 0.3s;
    transform-origin: top;
}
.topImgHere {
    position: relative;
}
.knowVIdeoHere:hover .watchVIdeo {
transform: scaleY(1);
}
.topImgHere>img {
    height: 190px;
    object-fit: contain;
    background: #cdcdcd;
}
.video-overlay {
    position: fixed;
    z-index: -1;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.80);
    opacity: 0;
    transition: all ease 500ms;
}
.video-overlay.open {
    position: fixed;
    z-index: 1000;
    opacity: 1;
}
.video-overlay-close {
    position: absolute;
    z-index: 1000;
    top: 15px;
    right: 20px;
    font-size: var(--fs36);
    line-height: 1;
    font-weight: 400;
    color: #fff;
    text-decoration: none;
    cursor: pointer;
    transition: all 200ms;
}
.video-overlay iframe {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translateX(-50%) translateY(-50%);
    box-shadow: 0 0 15px rgb(0 0 0 / 75%);
}
.video-play-button {
    position: absolute;
    z-index: 10;
    top: 50%;
    left: 50%;
    transform: translateX(-50%) translateY(-50%);
    box-sizing: content-box;
    display: block;
    width: 32px;
    height: 44px;
    /* background: #fa183d; */
    border-radius: 50%;
    padding: 18px 20px 18px 28px;
}
.video-play-button span {
    display: block;
    position: relative;
    z-index: 3;
    width: 0;
    height: 0;
    border-left: 15px solid #2699fb;
    border-top: 10px solid transparent;
    border-bottom: 10px solid transparent;
    left: 7px;
    top: 13px;
}
.video-play-button:before {
    content: "";
    position: absolute;
    z-index: 0;
    left: 50%;
    top: 50%;
    transform: translateX(-50%) translateY(-50%);
    display: block;
    width: 50px;
    height: 50px;
    background: #ffffff;
    border-radius: 50%;
    animation: pulse-border 1500ms ease-out infinite; 
}
.video-play-button:after {
    content: "";
    position: absolute;
    z-index: 1;
    left: 50%;
    top: 50%;
    transform: translateX(-50%) translateY(-50%);
    display: block;
    width: 50px;
    height: 50px;
    background: #ffffff;
    border-radius: 50%;
    transition: all 200ms;
}
@keyframes pulse-border {
    0% {
        transform: translateX(-50%) translateY(-50%) translateZ(0) scale(1);
        opacity: 1;
    }
    100% {
        transform: translateX(-50%) translateY(-50%) translateZ(0) scale(1.5);
        opacity: 0;
    }
}

.knowledge_box{
     background-color: #fff;
    box-shadow: 0 0 15px #e9e4e4;
    padding: 30px 20px;
}