linear-gradient
来源：5-5 CSS3背景 制作导航菜单综合练习题
不骄不躁306
2020-01-11 15:16
background: -moz-linear-gradient(top, rgba(255,255,255,0), rgba(255,255,255,.2) 50%, rgba(255,255,255,0));
background: -webkit-linear-gradient(top, rgba(255,255,255,0), rgba(255,255,255,.2) 50%, rgba(255,255,255,0));
background: -o-linear-gradient(top, rgba(255,255,255,0), rgba(255,255,255,.2) 50%, rgba(255,255,255,0));
background: -ms-linear-gradient(top, rgba(255,255,255,0), rgba(255,255,255,.2) 50%, rgba(255,255,255,0));
background: linear-gradient(top, rgba(255,255,255,0), rgba(255,255,255,.2) 50%, rgba(255,255,255,0));
请问：这里的参数50%是什么含义？
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- 慕瓜606597
- 2020-01-31 09:52:25
50%为透明参数，取值在0和1直接，不可为负值哦?
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