Remove the height of <br>

how can I retain the line wrapping function of
and remove the height occupied by
?
Thank you

Html
May.31,2021

br {display: none;} proper

1, the < br/ > tag is only used to wrap lines, and normal use will not produce height.
2, the height is generated because the block-level elements are followed by < br/ >, and the block-level elements originally wrap, but now a < br/ > newline is added, which is equal to two new lines with an extra line of white space in the middle, so you will feel that < br/ > produces the height.
3, in the first case, leave < br/ > to have a line wrap effect, and in the second case, there is a line break itself, so delete < br/ >, or display:none.

controls line-height, to keep font and line height consistent. 

.xxx{
    font-size:20px;
    line-height:20px;
}

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