How to process the current cell with a custom formula in conditional format- How to address the current cell in conditional format custom formula?

problem ：

I need to write a conditional format rule with a custom formula, that should trigger when the certain cell's (the cell in the 3rd row of the column of the current cell) value is "TODAY()" , and the current cell is empty . I need to write conditional formatting rules using custom formulas , When a specific cell （ The... Of the current cell column 3 Cells in rows ） The value is "TODAY()" And the current cell is empty when , This rule should be triggered .I know how to check the other cell, but is there a way to check the current cell's value in the same rule? I know how to check another cell , But is there any way to check the value of the current cell in the same rule ？

As you can see on this image, one column has a different color because the 3rd row of the column of the current cell contains the current date. As you can see on this image , A column has different colors , Because the third row of the column in the current cell contains the current date .And only empty cells are colored. And only empty cells are colored .

Here is my rule: This is my rule ：

=and($3:$3=TODAY(), ????)

It should apply to all cells in a range A4:M10 It should apply to A4:M10 All cells in the range

I need it to be the one rule, not combination of multiple rules. I need it to be a rule , Instead of a combination of multiple rules .I need to put something to the place of ???? I need to put things in ????

In other words, I need to place the value described as "Cell is empty" in the custom formula as it's part. let me put it another way , I need to place the description as “ Cell is empty ” Value , Because it is part of .

Here is an example spreadsheet: https://docs.google.com/spreadsheets/d/1vpNrX2aUg8vY5WGDDuBnLfPuL-UyrjFvzjdATS73aq8/edit?usp=sharing This is an example spreadsheet ： https : //docs.google.com/spreadsheets/d/1vpNrX2aUg8vY5WGDDuBnLfPuL-UyrjFvzjdATS73aq8/edit?usp=sharing

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Solution ：

Reference resources ： https://stackoom.com/en/question/2O7Aq