.ad-placement {
    position: relative;
    display: flex;
    justify-content: center;
    width: min(1120px, calc(100% - 40px));
    min-height: 82px;
    margin: 34px auto;
    overflow: hidden;
}

.ad-placement::before {
    content: 'Advertisement';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    color: #7a8784;
    font: 10px/1.2 Arial, sans-serif;
    letter-spacing: .08em;
    text-transform: uppercase;
}

.ad-frame-shell { display: flex; align-items: center; justify-content: center; max-width: 100%; padding-top: 18px; }
.ad-frame { display: block; max-width: 100%; border: 0; background: transparent; }
.ad-mobile-frame { display: none; }
.ad-native { min-height: 300px; }
.ad-native .ad-frame-shell { width: min(100%, 900px); }
.ad-native .ad-frame { width: 100%; }
.ad-compact { min-height: 82px; }
.ad-rectangle { min-height: 286px; }

.ad-sponsored-link {
    display: block;
    width: fit-content;
    margin: 16px auto 28px;
    color: #77827f;
    font: 11px/1.4 Arial, sans-serif;
    text-decoration: underline;
    text-underline-offset: 3px;
}

.ad-rail {
    position: fixed;
    z-index: 5;
    top: 92px;
    display: none;
    width: 160px;
    overflow: hidden;
}

.ad-rail-left { left: 12px; height: 600px; }
.ad-rail-right { right: 12px; height: 300px; }
.ad-rail .ad-frame-shell { padding-top: 0; }

@media (min-width: 1540px) {
    .ad-rail { display: block; }
}

@media (max-width: 779px) {
    .ad-desktop-frame { display: none; }
    .ad-mobile-frame { display: block; }
    .ad-placement { width: min(100% - 24px, 720px); }
}

@media (max-width: 520px) {
    .ad-compact { display: none; }
}