elements This is b… The correct way is: margin-left: 20px; An internal style sheet may be used if one single HTML page has a unique style. You can modify following CSS properties: Background gradient colors (CSS3) Font color, size, style and weight Also, keep in mind that inline styles only affect the specific element that you add the style attribute with CSS property-value pairs to. It contains CSS, which is applied to the contents of the document containing the