Create Html Editor Styles. After completing your css button click on the button preview or Get Code button to view generated CSS and HTML codes. Go to the Extensions view X Windows Linux CtrlShiftX and type html to see a list of relevant extensions to help with creating and editing HTML.

You can make adjustments to your new table with the two interactive instant source editors where you. Adjust text alignment and table borders using the options from the menu and using the toolbar buttons -- formatting is applied to all the selected cells. Function wpdocs_theme_add_editor_styles add_editor_style custom-editor-stylecss.
What if you want to add your own CSS styles to the HTML Editor.
What if you want to add your own CSS styles to the HTML Editor. Add_action admin_init wpdocs_theme_add_editor_styles. Install an extension to add more functionality. First select a style from the gallery that looks similar to your design.