CSS « jQuery « JavaScript DHTML

1.Change color for DIV
2.Change submit button background and border
3.Change background color
4.Change border style and cursor
5.Change CSS visibility to hide a tag
6.Remove style class
7.Looks for the class 'selected' on the matched elements.
8.Remove the class 'highlight' from the matched elements.
9.Remove two classes

10.Remove all the classes from the matched elements.
11.Toggle the class 'highlight' when a paragraph is clicked.
12.To access the background color of a clicked div.
13.If the property name includes a "-", put it between quotation marks: