.color-main {
    color: red;
}



.column {
    float: left;
    width: 33.3%;
    margin-bottom: 16px;
    padding: 0 8px;
  }
  
  @media screen and (max-width: 650px) {
    .column {
      width: 100%;
      display: block;
    }
  }
  
  .card {
    box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2);
  }
  
  .container {
    padding: 0 16px;
  }
  
  .container::after, .row::after {
    content: "";
    clear: both;
    display: table;
  }
  
  .title {
    color: grey;
  }

  
.video-background {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  z-index: -99;
}