Set these options for HTML code completion in the Options > Editor > Code Completion tab, when HTML language is selected. These options apply globally to HTML, and only to HTML.
If the option "Equals-sign (=) Keypress After Attribute Name Autocompletes Quote Set" is disabled and you type an attribute name, equals sign, and opening quote, the IDE also inserts the closing quote of the attribute value.
This attribute is enabled by default.