基于解决方案您已经找到了如何将CSS应用于iframe?:
var cssLink = document.createElement("link")
cssLink.href = "file://path/to/style.css";
cssLink .rel = "stylesheet";
cssLink .type = "text/css";
frames['iframe'].document.body.appendChild(cssLink);
或更多jqueryish(从使用jQuery将样式表附加到iframe):
var $head = $("iframe").contents().find("head");
$head.append($("<link/>",
{ rel: "stylesheet", href: "file://path/to/style.css", type: "text/css" }));