Vulcan/packages/telescope-theme-hubble/lib/client/scss/modules/_banners.scss

.banner.banner{
  background: rgba(255,255,255,0.7);
  margin-bottom: 10px;
  padding: 20px;
  position: relative;
  overflow: hidden;
}

.banner-heading{
  border-bottom: 1px solid $grey;
  font-weight: bold;
  color: $medium-text;
  padding-bottom: 10px;
  margin-bottom: 10px;
}

.banner-dismiss, .banner-dismiss:link, .banner-dismiss:visited{
  display: block;
  position: absolute;
  height: 30px;
  width: 30px;
  border-radius: 100%;
  background: rgba(0,0,0,0.15);
  color: white;
  top: 50%;
  margin-top: -15px;
  right: 20px;
  font-size: 16px;
  text-align: center;
  vertical-align: middle;
  line-height: 32px;
  @include small{
    top: 10px;
    right: 10px;
    margin-top: 0px;  
  }
}
.banner-dismiss:hover{
  color: inherit;
}