Fill in the Blanks CSS and Bootstrap Framework Online version Fill in the blank part 1 by Sachitra Wanninayake 1 selector selector Inline decoration hash style comment same ID value HTML value look formatting External property HTML selector class selector 1 . Cascading Style Sheets ( CSS ) is a style sheet language used for describing the and of a document written in a markup language . 2 . CSS defines how the elements are to be displayed . 3 . - giving a style attribute to HTML elements 4 . CSS syntax consists of 3 parts : a , a and a 5 . { property : ; } 6 . / * This is some * / 7 . An is a unique identifier of the HTML element to which a particular style must be applied . It is used only when a single element on the web page must have a specific style . 8 . Both in Internal and Style Sheets we use ( # ) for an id selector . 9 . A is used when the same style must be applied to multiple HTML elements on the web page . 10 . Text decoration property is used for setting the of the text .