I want the center of the dropdown menu aligns with the center of the parent menu item. Using css (stylus). But the width of the dropdown menu is not fixed, the width of the submenu items is dynamic, meaning it can change based on the content inside.

This article is the detail of how to setup AWS s3 on my Java 1.x with Spring Boot based on my own project needs.

Note about how to realize a IOC.

Note of learning Ioc Introduction.

This is a note of studying Spring.

Calculate the building in lines not by the whole building.

之前装过win11，笔记本没问题，去教室电脑装了一下，各种不支持，CPU和TPM都不支持。但是并不是真的是硬件不支持，可以跳过检测。

昨天刚刚装了win11，又遇到了那个经典的bug，没有声音，声音图标显示一个叉号。这个之前在Win10我就遇见过好多回了，每次都搞好长时间。