#config-portal-view {
    padding: 10px;
}
.demo-card-image.mdl-card {
    width: 100%;
    height: 300px;
  }
  .demo-card-image > .mdl-card__actions {
    height: 52px;
    padding: 16px;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    box-sizing:border-box;
    align-items: center;
  }
  .demo-card-image__filename {
    color: #fff;
    font-size: 14px;
    font-weight: 500;
  }