/* https://www.kevinpowell.co/article/css-remedy/ */
* { box-sizing: border-box; } /* Switch to border-box for box-sizing. */
body {
    margin: 0; /* Remove the tiny space around the edge of the page */
}
img, video, canvas, audio, iframe, embed, object  {
    display: block; /* Switch display mode to block, since that's what we usually want for images. */
    vertical-align: middle;  /* If you override, and make an image inline, it's likely you'll want middle vertical alignment. */
}

/* limit maximum page width and center the page when limited. */
body {
    max-width: 1330px;
    margin: 0 auto;
}

.ad {
    outline: 1px dashed black;
}