Established in the external style. Faster pages. You can change the styles without editing the main css file. Ideal for dynamic styles. Useful for sending emails in html format. On the contrary, it has the following disadvantages : excessive use of styles in a multitude of tags will make the page take up more space and consequently increase the loading time. Maintenance and styling changes become more complicated. Importing existing style sheet files another cool way to include css in html is with the @import rule . This rule allows us to attach a new css file from the css itself.
The syntax would be: import css file in said import we are including the rules established in said css file to the file that we are already developing. It is important to remember that the path is relative to the current css file we are in, if the css is embedded in e commerce photo editing service the html page then the path is relative to the html file. The main advantage of using this rule is the ease of adding new css files without changing the html markup. It has a downside , and that is that additional http requests are required. Injecting css with javascript sometimes we need to apply css from javascript .
We can do this in the following ways: inject an external style sheet file with javascript create a link element, add the path to the css file in the href attribute, and then inject it into the page with javascript: inject css with javascriptinsert a block of rules in a page with javascript we need to create a style element, insert our css rules as a string, and then attach the element to the header of the html file: inject css with javascriptadd inline styles to individual elements with javascript first we must obtain an identifier of the elements that we want to change, and then add the desired css properties: inject css with javascript apply styles with style! These are all the possible