In CSS3, the rounded corner attribute "border-radius" of div is a new attribute of CSS3. This attribute is an abbreviated attribute used to set the rounded corner style of the four corners. The syntax is "border- radius: The upper left corner fillet value, the upper right corner fillet value, the lower right corner fillet value, the lower left corner fillet value;".
The operating environment of this tutorial: Windows 10 system, CSS3&&HTML5 version, Dell G3 computer.
Is the rounded corner attribute of div a new attribute of css3?
The rounded corner attribute of div is border-radius, which is a new attribute of css3.
The border-radius property is a shorthand property used to set the four border-*-radius properties.
Tip: This attribute allows you to add rounded borders to elements!
The syntax is;
border-radius: 1-4 length|% / 1-4 length|%;
Note: Set the four values of each radii in this order. If bottom-left is omitted, it is the same as top-right. If bottom-right is omitted, it is the same as top-left. If top-right is omitted, it is the same as top-left.
Possible values for the attribute are as follows:
Examples are as follows:
<html> <head> <style> div { text-align:center; border:2px solid #a1a1a1; padding:10px 40px; background:#dddddd; width:350px; border-radius:25px; -moz-border-radius:25px; /* 老的 Firefox */ } </style> </head> <body> <div>border-radius 属性允许您向元素添加圆角。</div> </body> </html>
Output result:
(Learning video sharing: css video tutorial)
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