.grav-instagram {
    max-width: 400px;
    margin: 0 auto 1rem;
}

/* Starting height until Instagram reports the real one (see instagram.js). */
.grav-instagram iframe {
    display: block;
    width: 100%;
    height: 720px;
    border: 0;
    border-radius: 4px;
    background: #fff;
}

.grav-instagram--captioned iframe {
    height: 860px;
}