CSS, How to Style with Margins

Wednesday, 16. December 2009

When designing a CSS based website it is very useful to understand Margins. I have found that it is much easier to deal with browser compatibility when  one uses proper margin styles. Trying to set a top: -10px seems to cause browser issues that can be easily avoided by using margin-top:-10px.

Margins can be applied to the outside of any block level or inline element. They create space between the edge of an element and the edge of any adjacent elements.

Margins can be applied to the individual sides of an element.

p { margin-top: 0px}
p { margin-right: 5px}

h1 { margin-bottom: 3px}
h1 { margin-left: 4px}

Margins can also be used with a single short tag. If one value is set this value will be applied to all sides of the element.

p { margin: 5px}

If two values are set, the first value will be applied to the top and bottom of the element while the second value will be applied to the left and right margins.

p { margin: 10px 5px}

If three values are set the fist value is applied to the top, the second value is applied to the left and right and finally the third value is applied to the bottom.

p { margin: 10px 5px 7px}

If for values are set the first value is applied to the top, the second value is applied to the right, the third value is applied to the bottom and the forth is applied to the left.
Top, Right, Bottom, Left

p { margin:10px 5px 7px 3px}

CSS, How to Apply Inline Styles.

Monday, 10. August 2009

CSS, Inline styles can be applied directly to elements in the HTML code using the style attribute. However, inline styles should be avoided wherever possible because the styles are added to the HTML markup. This defeats the main purpose of CSS, which is to apply the same styles to as many pages as possible across your website using external style sheets. Styles that are applied inline can cause additional maintenance across a website because multiple pages might need changing rather then one CSS file.

<p style=”font-family: arial, helvetica, sans-serif; margine: 1em; padding 1em; background-color: gray; width: 10em;”>Lorem ipsum color sit amet, consectuer adipiscing elit…</p>