/* Blank block (front-end) */
.kbsp-blank {
  display: block;
  width: 100%;
  line-height: 1;
  margin: 0.25em 0; /* Small vertical margin */
}

/* Ad block (front-end) */
.kbsp-ad-banner {
  display: block;
  text-align: center;
  padding: 16px;
  background: #f3f4f6;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, .04);
  font-size: 14px;
}
/* Responsive ad banner image */
.my-ad-banner {
  width: 100%;
  text-align: center;
}
.my-ad-banner img {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 0 auto;
}