Changing the page header color

Was looking at how i can change the header on this template. I want to change the black to white on the top
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Dear Chis Colon.
Thank you for using product our.
You can change the color that you want the below:
Go to: templaes / custom code / before</head> tab and wirte line code as image in the link:
prnt.sc/b03jdq
<style>
.t3-header {
background-color:white!important;
}
</style>