components/policy/resources/webui/policy_promotion.html

<style>
.banner-section {
  background-color: var(--promotion-banner-background);
  padding: 24px;
}

.banner-section-container {
  display: flex;
  flex-direction: row;
  width: 100%;
  gap: 24px;
}

.banner-actions-container {
  display: flex;
  width: 100%;
  gap: 16px;
  justify-content: space-between;
  flex-direction: row;
}

.promotion-main-text-container {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.promotion-text-container {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.blue-pill-button {
  background-color: var(--promotion-pill-button-color);
  width: 202px;
  padding: 8px 0px 8px 0px;
  text-align: center;
  line-height: 20px;
  font-size: 13px;
  font-weight: 500;
  border: none;
  color: var(--promotion-pill-text-color);
  border-radius: 50px;
  cursor: pointer;
  text-decoration: none;
}

.blue-pill-button:hover {
  background: color-mix(
    in srgb,
    var(--promotion-pill-button-color-hover),
    var(--promotion-pill-button-color)
  );
}

.banner-title {
  color: var(--promotion-banner-title-color);
  font-weight: 500;
  font-size: 16px;
  line-height: 24px;
  display: contents;
}

.banner-description {
  color: var(--promotion-banner-description-color);
  font-size: 14px;
  font-weight: 400;
  line-height: 20px;
}

.promotion-icon-container {
  display: flex;
  align-items: center;
}

#close-icon-container {
  -webkit-mask-image: url(chrome://resources/images/promotion_policy_banner_close.svg);
  -webkit-mask-position: center;
  -webkit-mask-repeat: no-repeat;
  -webkit-mask-size: 20px;
  background-color: #5f6368;
  height: 20px;
  width: 20px;
}

@media (prefers-color-scheme: dark) {
  #close-icon-container {
    background-color: #f1f3f4;
  }
}

@media (forced-colors: active) {
  #close-icon-container {
    filter: invert(100%);
  }
}

.dismiss-button {
  height: 20px;
  width: 20px;
  background-color: transparent;
  cursor: pointer;
  border: none;
  padding-inline: 0;
  padding-block: 0;
}

/* Remove the icon with smaller width devices for promotion banner */
@media only screen and (max-width: 530px) {
  .promotion-icon-container {
    display: none;
  }
}
</style>

<if expr="not is_android and not is_ios">
<section id="promotion-banner-section-main" class="banner-section">
  <div id="promotion-banner-section" class="banner-section-container">
    <div id="promotion-icon" class="promotion-icon-container" aria-hidden="true">
      <picture>
        <source srcset="chrome://resources/images/dark/promotion_banner_dark.svg"
          media="(prefers-color-scheme: dark)">
        <img src="chrome://resources/images/promotion_banner_light.svg">
      </picture>
    </div>
    <div id="banner-actions" class="banner-actions-container">
      <div id="promotion-main-text" class="promotion-main-text-container">
        <div id="promotion-text" class="promotion-text-container">
          <h2 id="promotion-banner-title" class="banner-title">$i18n{promotionBannerTitle}</h2>
          <div id="promotion-banner-description" class="banner-description">
            $i18n{promotionBannerDesc}
          </div>
        </div>
        <!-- TODO(crbug.com/380495561): Replace with redirect logic once rpc service is ready -->
        <button id="promotion-redirect-button" class="blue-pill-button">
          $i18n{promotionBannerBtn}
        </button>
      </div>
      <button id="promotion-dismiss-button" class="dismiss-button" tabindex="0">
        <div id="close-icon-container"></div>
      </button>
    </div>
  </div>
</section>
</if>