定位：/wp-content/themes/zibll/func.php文件里面，没有这个文件自己创建一个，记得加上php头，要不然报错，将下面的代码放里面，CSS代码直接丢到：子比主题–>>自定义CSS样式即可！

CSS代码

/*文章内页更新时间*/
                .update-ts{
                    padding-top: 6px;
                    padding-bottom: 8px;
                }
                .article-update-tips {
                background: rgba(255, 188, 68, 0.38);
                color: #333;
                margin: 0 0px 20px;
                border-radius: 8px;
                position: relative;
                text-align: center;
                background-image: url(https://img.alicdn.com/imgextra/i1/2210123621994/O1CN017ZFVO81QbIjgNEl4Q_!!2210123621994.png);
                background-clip: padding-box;
                background-size: cover;
                background-repeat: no-repeat;
                background-attachment: scroll;
                background-position: 50% 50%;
                background-blend-mode: normal;
            }span1 {
                color: #f60;
                margin: 0 3px;
            }