The styles of this website is unstable. Which means like the texts are too think and there are some awkward animations that occur when the window is shown or JavaScript is doing something.

Now, the website has just one page which is /. But as much as it has a lot of codes in there, it would be better if it has separated routes so they can be treating about the specific contents.

Whenever I changed the year on the section for checking history, sometimes I could see the word "undefined".

it is optional feature, but it would be better to be added the feature that supports Korean and English both of languages. I think that the toggle button will be placed on header bar. The reason that this feature can be turn on and off is that creating another html file for supporting English version is required a lot of sameness between them, but building libraries for replacing texts fast is not required a lot of sameness and it also can be used as a component feature.

As much as this website is for reading directly, it should have a feature of preventing our visitor’s eyes. Such features are a light and dark mode theme I think.

The styling of the html does not work. So, when I visited to the link, the window showed me a web page without any styling to it.