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This article mainly introduces the relevant knowledge of "how to use border, select and fixed in html". The editor shows you the operation process through an actual case. The operation method is simple, fast and practical. I hope this article "how to use border, select and fixed in html" can help you solve the problem.

Border in html has border-radius with only one corner.

Border-top-left-radius: 8px; upper left Radian 8px

Border-top-right-radius: 8px; upper right corner

Border-bottom-left-radius: 8px; lower left corner

Border-bottom-right-radius: 8px; lower right corner

Html's select statement 1. Use the method zero one two three four five2. Increasing the default selection generally selects the first option by default, or you can manually add the selected state, that is, to add selected= "selected" zero one two three four fivefixed and z-index1 to the corresponding option. explain

Fixed is a kind of positioning in html, which means suspended above the document stream.

Absolute is the absolute positioning in html, meaning that it is separated from the document stream relative to the absolute position of the previous positioning element.

Relative is the relative positioning in html, which means that the relative position of the positioning element relative to the previous level does not deviate from the document stream.

Z-index is the priority, locate the priority of position, regardless of absolute/relative/fixed.

two。 Working with scen

When you want to click a button, the entire screen is covered with a black mask, and a box is displayed on top of the black mask. At this point, you can set the value of their z-index and the location type.

This is the end of the introduction on "how to use border, select and fixed in html". Thank you for your reading. If you want to know more about the industry, you can follow the industry information channel. The editor will update different knowledge points for you every day.

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