How can I change the style of a Pop-Up?

You can change the appearance of a Pop-Up by editing its HTML with inline styles. For instance, to set a click Pop-Up’s width to 150px, select initial settings in the POP-UP HOVER panel with its toggle set to Values, then click the toggle to switch it to HTML. Add a style attribute to the first div to define a maximum width:

<div class="CDB-infowindow CDB-infowindow--light js-infowindow" style="max-width:150px">

Important note: Scripts should not be included in the HTML panel.