css - JavaFX remove padding/margin/border from Pane -

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i can't seem remove left , right border of gridpane. see picture below.

left , right border

my fxml file 

<?xml version="1.0" encoding="utf-8"?>  <?import java.lang.*?> <?import java.util.*?> <?import javafx.scene.*?> <?import javafx.scene.control.*?> <?import javafx.scene.layout.*?>  <gridpane alignment="center" maxheight="-infinity" maxwidth="-infinity" minheight="-infinity" minwidth="-infinity" prefheight="600.0" prefwidth="800.0" style="-fx-box-border: transparent;" xmlns:fx="http://javafx.com/fxml/1" xmlns="http://javafx.com/javafx/8">     <padding>         <javafx.geometry.insets  top="0" right="0" left="0" bottom="0"/>                      </padding>     <columnconstraints>         <columnconstraints percentwidth="33.0" />         <columnconstraints hgrow="sometimes" minwidth="10.0" percentwidth="33.0" prefwidth="100.0" />         <columnconstraints hgrow="sometimes" minwidth="10.0" percentwidth="33.0" prefwidth="100.0" />     </columnconstraints>     <rowconstraints>         <rowconstraints minheight="10.0" percentheight="33.0" prefheight="30.0" vgrow="sometimes" />         <rowconstraints minheight="10.0" percentheight="33.0" prefheight="30.0" vgrow="sometimes" />         <rowconstraints minheight="10.0" prefheight="30.0" vgrow="sometimes" />     </rowconstraints>     <children>         <stackpane prefheight="150.0" prefwidth="200.0" style="-fx-background-color: red;" />         <stackpane prefheight="150.0" prefwidth="200.0" style="-fx-background-color: red;" gridpane.columnindex="2" gridpane.rowindex="1" />     </children> </gridpane>

as can see tried setting insets 0, , making border transparent doesn't work.

your problem simple - columns have percentwidth set, total percent adds 99%, not 100%. either change of percentages 33.33..., or else change 1 of them 34% while other 2 remain 33%.


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