博客园如何设计自己的样式？

<!-- 在博客后台设置中先申请js权限，等审核通过后，再在页首、页脚Html代码添加下面的js代码。 -->
<!-- 页首Html代码： -->
<canvas height="990" id="c_n9" style="position: fixed; top: 0px; left: 0px; z-index: -1; opacity: 0.1;" width="1920">
</canvas>
<!-- 页脚Html代码： -->
<script src="https://files.cnblogs.com/files/lovebing/mylines.js" type="text/javascript">
</script>
<!-- 时间 -->
<div id="myTime" style="">
    <object align="middle" classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" codebase="http://fpdownload.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=8,0,0,0" height="70" id="honehoneclock" width="160">
        <param name="allowScriptAccess" value="always">
            <param name="movie" value="http://chabudai.sakura.ne.jp/blogparts/honehoneclock/honehone_clock_wh.swf">
                <param name="quality" value="high">
                    <param name="bgcolor" value="#ffffff">
                        <param name="wmode" value="transparent">
                            <embed align="middle" allowscriptaccess="always" bgcolor="#ffffff" height="70" name="honehoneclock" pluginspage="http://www.macromedia.com/go/getflashplayer" quality="high" src="http://chabudai.sakura.ne.jp/blogparts/honehoneclock/honehone_clock_wh.swf" type="application/x-shockwave-flash" width="160" wmode="transparent">
                            </embed>
                        </param>
                    </param>
                </param>
            </param>
        </param>
    </object>
</div>
<!-- 小老鼠 -->
<div>
    <object data="http://cdn.abowman.com/widgets/hamster/hamster.swf?" height="200" style="outline:none;" type="application/x-shockwave-flash" width="190">
        <param name="movie" value="http://cdn.abowman.com/widgets/hamster/hamster.swf?">
            <param name="AllowScriptAccess" value="always">
                <param name="wmode" value="opaque">
                </param>
            </param>
        </param>
    </object>
</div>

摘录网友部分js 代码。