在可变高度元素上保持完美的圆角 [英] Maintain Perfectly Circular Corners on Variable-Height Element
问题描述
我有一个圆角完美的按钮;意思是,按钮的高度为50px,边框半径为25px,在按钮的两边都形成了一个完美的半圆:
I have a button with perfectly rounded corners; meaning, the button is 50px high and the border radius is 25px, making a perfect half-circle on either side of the button:
只要您已经知道按钮的高度(按钮高度÷2 =边框半径),使用CSS即可轻松实现.
Achieving this with CSS is easy, provided you already know the height of the button (button height ÷ 2 = border radius).
但是,如果按钮的高度动态增加(例如,添加了更多文本),是否可以保持完美的圆形边缘?
But is it possible to maintain the perfectly-circular edges if the button's height increases dynamically (more text is added, for example)?:
推荐答案
只需将border-radius
设置为较高的值,例如360px
.
Just set the border-radius
to something high, like 360px
.
div {
height:50px;
width:500px;
background:red;
border-radius:360px;
}
查看 这个jsFiddle示例 ,以了解我的意思.
Look at this jsFiddle example to see what I mean.
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