QUESTION 13 The first step while using style sheet is to use a text editor to create and save a document with a.css extension o a embedded o b. extenal O c. internal o d. inline QUESTION 14 can be implemented by measuring the widths of wireframe elements and content in relative units such as percentages and ems. o a. Fixed layouts ob. Closed layouts C. Static layouts o d. Fluid layouts QUESTION 15 Which of the following is the minimum viewport width for large desktop monitors? Oa 1280px ob. 320px ?. 481px d. 768px