#Firefox css color codes code#
The above code declares an inline style that makes the background-color for the #header element “purple”. Praesent dapibus, neque id cursus faucibus Since the text formatting entered in that interface must override any style sheet rules, those styles are inserted as inline styles in the generated HTML.īut those inline styles can be overridden by !important declarations in the author style sheet. For example, a website may have a content management system that allows text formatting in a WYSIWYG interface accessible to the site owner. Also, I personally find the * html hack to be much more practical in targeting IE6, since the addition of !important can have far-reaching, undesirable effects.Ī more practical use for !important is for overriding inline styles that are generated dynamically due to user-entered content. Since popularity of those browsers is diminishing (but not fast enough!), the use of this “hack” is not as common anymore. In the above CSS, the width of #header would be 300px in all browsers except IE 5/6, which would use the second width value of 400px. One of the most well-known uses for !important is to target Internet Explorer versions 5 & 6, which ignore the !important keyword when the same property is declared within the same style block. In this style example, the first background-color value will take precedence because of two factors: First, it uses !important and second, it is more selector-specific. The above styles are the same as the previous example, with the addition of another block of code at the top, which also uses !important. You can also have an !important declaration that overrides another !important declaration. So, the background colour of the element in question (the #leftSide element) will be green (#0f0) instead of red (#f00). In the above example, even though the background-color style set in the second code block is more selector-specific, and is declared last, the first block will take precedence because of the addition of !important. Here is a simple example demonstrating the use of !important: When the !important keyword is used on a specific property/value pair, it will cause that particular value to escape the cascade and become, as the name suggests, the most important value for that property, overriding any others. elements inside of elements are told to be 400px wide) is the style declared in a user style sheet?) A CSS style will be applied based on four factors, in this order: The reason it is used is due to the nature of CSS, which assigns weight to values according to where they appear in the “cascade”. !important is basically a keyword you can add to the end of a CSS property/value pair to give more weight to that CSS value. This article will discuss what !important is, how it’s used, some practical uses for it, and drawbacks that need to be considered before implementing it. So I thought I would research this unique CSS property/value appendage and do a comprehensive write-up on it that would go through essentially all the information developers should have before considering using !important in their style sheets. Recently I came across a few articles that mentioned CSS !important declarations, and there was a little bit of confusion over what they actually did, and how they could be used, as expressed in the user comments on those articles.
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