Method addCss

Pagetual/pagetual.user.js:7837–7846

(parent)

                });
                let css = this.curSiteRule.css;
                let addCss = (parent) => {
                    if (css) {
                        let cssArr = css.split("inIframe:");
                        if (cssArr && cssArr.length == 2) {
                            let styleEle = document.createElement("style");
                            setHTML(styleEle, cssArr[1]);
                            parent.appendChild(styleEle);
                        }
                    }
                };
                if (this.curSiteRule.surround === "iframe") {
                    let ele = document.createElement("iframe");
                    ele.style.border = "unset";