为什么动画持续时间属性不起作用

如何解决为什么动画持续时间属性不起作用

我正在尝试制作动画加载文本。但是这里我的 持续时间属性 不起作用。

这是html代码：

<div id="Text">
        Loading<span class="l1">.</span><span class="l2">.</span><span class="l3">.</span>
    </div>

这是CSS代码：

    .l1{
    visibility:hidden ;
    color:red;
    animation-name:dots;
    animation-duration:1s;
    animation-iteration-count:infinite ;
    animation-delay:0.5s;
    
    
}

.l2{
    visibility:hidden ;
    color:red;
    animation-name:dots;
    animation-duration:2s;
    animation-iteration-count:infinite ;
    animation-delay:1s;
    
}

.l3{
    visibility:hidden ;
    color:red;
    animation-name:dots;
    animation-duration:3s;
    animation-iteration-count:infinite ;
    animation-delay:1.5s;
    
}

@keyframes dots{
    from{visibility:hidden ;}
    to{visibility:visible ;}
}

但是持续时间属性不起作用。这三个点一个接一个地出现，但是在出现所有三个点后它们始终保持可见。 但是我想让所有三个点在出现后再次消失，并无限次重复。 谢谢

解决方法

WITH  t AS
(  
SELECT "user",MIN(start_time) AS min_start_time,MAX(end_time) AS max_end_time
  FROM user_activities
 GROUP BY "user" 
),t2 AS
(
 SELECT "user",min_start_time + NUMTODSINTERVAL(level,'minute') AS minutes
   FROM t  
CONNECT BY level <= EXTRACT( hour FROM max_end_time - min_start_time )*60 + 
                    EXTRACT( minute FROM max_end_time - min_start_time ) 
    AND PRIOR SYS_GUID() IS NOT NULL
    AND PRIOR "user" = "user"
)
SELECT "user",COUNT(*) AS "Duration"
  FROM t2  
 WHERE EXISTS ( SELECT * 
                  FROM user_activities 
                 WHERE minutes BETWEEN start_time and end_time
                   AND "user" = t2."user" )
 GROUP BY "user" 

        

 .l1,.l2,.l3{
    display:inline-block ;
    opacity: 0;
    color:red;
    animation:dots 1.5s infinite ease;
    animation-fill-mode: forwards;
}
 .l1{
    animation-delay:0.5s;    
}

.l2{
    animation-delay:1s;    
}

.l3{
    animation-delay:1.5s;    
}

@keyframes dots{
    0%{opacity:1 ;}
    100%{opacity:0 ;}
}

,

从from discord.ext import commands #This is a cog example,you'll have to adapt it with your code class Test(commands.Cog): def __init__(self,bot): self.bot = bot @commands.Cog.listener() #equivalent to @bot.event async def on_message(self,message): if 'test' in message.content: await message.channel.send('Test Message') await self.bot.process_commands(message) @commands.command() async def ping(self,ctx): await ctx.send('Pong!') def setup(bot): bot.add_cog(Test(bot)) 到visibility使用opacity而不是动画opacity: 0

从所有opacity: 1类中删除visibility:hidden