CT.CSS - 仅通过注射样式表的性能提示

Harry的Ingenious CSS技术通过分析您的元素。一个关键方面是通过更改其<code>display属性来使隐藏的元素可见 - 一个简单而有效的技巧甚至适用于内容。例如：

头，
头部风格，
头部脚本{
  显示：块;
}

哈利的光彩在他精致的选择器中闪耀，根据标签使用和放置来识别性能瓶颈。例如，<script> tag appearing after stylesheets:</script>

<link href="..." rel="stylesheet"><title>Page Title</title>

is inefficient, as the script execution is blocked by the CSS. While specialized performance tools can detect this, Harry leverages CSS selectors:

head [rel="stylesheet"]:not([media="print"]):not(.ct) ~ script,
head style:not(:empty) ~ script {
  /* Styles applied here for visual debugging */
}

This refined selector targets only stylesheets or style blocks that are actually causing blocking, excluding those with media="print" or the .ct class. Harry then uses styling and pseudo-elements to visually highlight these performance issues within the stylesheet itself, transforming it into a visual performance debugging tool.

This clever approach allows the stylesheet to flag various issues, including unnecessary attributes, blocking resources, and incorrectly ordered elements. The sheer ingenuity of using CSS in this way is remarkable.

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