Bài tập CSS nâng cao

    Câu hỏi 1:Change the color of all < p> elements to "red"

    Câu hỏi 2:Change the color of the element with id="para1", to "red"

    Câu hỏi 3:Change the color of all elements with the class "colortext", to "red"

    Câu hỏi 4:Change the color of all < p> and < h1> elements, to "red". Group the selectors to minimize code

    Câu hỏi 5:Add an external style sheet with the URL: "mystyle.css".

    Câu hỏi 6:. Set "background-color: linen" for the page, using an internal style sheet.

    Câu hỏi 7:Set "background-color: linen" for the page, using an inline style

    Câu hỏi 8:Remove all styles, except the external style sheet "mystyle.css"

    Câu hỏi 9:Set the background color for the page to "linen" and the background color for < h1> to "lightblue"

    Câu hỏi 10:Set "paper.gif" as the background image of the page.

    Câu hỏi 11:Set "gradient_bg_vertical.png" as the background image of the page, and repeat it vertically only