Which Chrome extension highlights all borders of HTML elements?

Question

Google Chrome

Lost the extension .. when activated on the current page, a border was drawn for each html element.
As a result, it was possible to conveniently see which elements are incorrectly laid out, overlap each other, go beyond the boundaries of the blocks ..
Does anyone know?

Answer 1

*:not(path):not(g) {
    color:                    hsla(210, 100%, 100%, 0.9) !important;
    background:               hsla(210, 100%,  50%, 0.5) !important;
    outline:    solid 0.25rem hsla(210, 100%, 100%, 0.5) !important;
    box-shadow: none !important;
}

https://medium.freecodecamp.org/heres-my-favorite-...
CSS can be inserted into " User CSS " and enabled/disabled as needed