CT.CSS - 僅通過注射樣式表的性能提示

Harry的Ingenious CSS技術通過分析您的元素。一個關鍵方面是通過更改其<code>display屬性來使隱藏的元素可見 - 一個簡單而有效的技巧甚至適用於內容。例如：

頭，
頭部風格，
頭部腳本{
  顯示：塊;
}

哈利的光彩在他精緻的選擇器中閃耀，根據標籤使用和放置來識別性能瓶頸。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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