TitanFighter

Maybe I do not understand something but you can convert % to number - this is simple math.

有些自适应的百分比布局，没有办法使用具体的值来设定的 -> Some adaptive percentage layouts cannot be set with specific values Without your code it is difficult to help. Show it for example on https://codesandbox.io/

See inputs at the bottom of the page: https://mauricius.github.io/vue-draggable-resizable/?path=/story/basic--basic-controlled-component

Can not reproduce. What OS, 32/64 bit? Version of Firefox, 32/64 bit?

Save initial height then on click apply saved value.

Show your code via codesandbox or something similar, then I can fix your issue.

Css added?

Percent of what? Screen size? or element? Anyway in both cases you can easily calculate it. What you need is just a bit of math and for example read [this](https://stackoverflow.com/questions/3437786/get-the-size-of-the-screen-current-web-page-and-browser-window).

Try to set width and height of image the same as width and height of the draggable

I do not understand what you mean. Probably you need this - https://mauricius.github.io/vue-draggable-resizable/?path=/story/basic--basic-controlled-component