Css code to change background color of html note

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2

userchrome.css:

div.CodeMirror-lines, body {
  background-color: #b3ecb8;
}

input.title-input {
  background-color: #b3ecb8 !important;
}

userstyle.css:

div#rendered-md, #tinymce {
  background-color: #b3ecb8;
}

Removed invalid selectors and !important flags. #tinymce targets the Rich Text editor background.

This forum post shows you which CSS file affects which area of the application for both editors.