Javascript 更改类名并不改变CSS
我有一个简单的乒乓球游戏,当你按p键或单击设置按钮时,我试图通过更改类名使设置div淡入。类名会更改,但CSS不会更新。代码是Javascript 更改类名并不改变CSS,javascript,css,transitions,Javascript,Css,Transitions,我有一个简单的乒乓球游戏,当你按p键或单击设置按钮时,我试图通过更改类名使设置div淡入。类名会更改,但CSS不会更新。代码是 <!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <link href='main.css' type='text/css' rel='stylesheet'> <meta name="viewport" content="width=device
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<link href='main.css' type='text/css' rel='stylesheet'>
<meta name="viewport" content="width=device-width"/>
<script src='game.js' type='text/javascript'></script>
<title>Pong Game</title>
</head>
<body onMouseMove='mouse()' onTouchStart='mouse()' onLoad='ball()' onkeydown="move(event); this.select()" >
<div id='wrap' onKeyDown='move();'>
<canvas id='level' width=600px height = 25px ></canvas><br>
<div id='canvasWrap'>
<div id='options'>
<a href='#' class='links'><span id='pause' class='options' onClick='pause()'>Settings</span></a>
<span id='restart' class='options'>     Restart</span>
<br><br><div id='settings' class='visible'>
<span><b>Controls:</b></span><br>
<span>adsfasdfasdfasdf</span>
</div>
</div><br>
<canvas id='canvas' width=600px height=400px >If you can see this, please enable Javascript or switch to a newer browser</canvas>
</div>
<span id='score'></span>
<button type='button' onClick='show()'>Show change</button><br>
<span id='myspan'></span>
<script type='text/javascript' src='global.js'></script>
</div>
<script>
</script>
</body>
</html>
CSS是
@CHARSET"UTF-8";
canvas {
border:1px solid black;
position:relative;
top:0px;
}
#wrap {
width:100%;
height:100%;
}
body {
width:100%;
height:100%;
}
#canvaswrap {
width:600px;
height:600px;
margin:10px;
padding:10px;
}
#options {
background-color:black;
color:lightgrey;
position:relative;
width:600px;
top:20px;
text-align:center;
z-index:1;
}
.options:hover {
color:white;
}
#settings {
display:none;
position:absolute;
width:599px;
height:400px;
background-color:lightgrey;
color:white;
opacity:0;
}
#settings>a:link {
color:white;
text-decoration:none;
}
.links {
color:lightgrey;
text-decoration:none;
}
.seen {
display:block;
opacity: 1;
color:pink;
-webkit-transition: opacity 1s;
-moz-transition: opacity 1s;
-o-transition: opacity 1s;
-ms-transition: opacity 1s;
transition: opacity 1s;
}
从本质上讲,类肯定在变化,但CSS没有变化。如果您认为这是原因,我可以发布我的Javascript的其余部分设置的特异性太高,请尝试:
#settings.seen {
display:block;
opacity: 1;
color:pink;
-webkit-transition: opacity 1s;
-moz-transition: opacity 1s;
-o-transition: opacity 1s;
-ms-transition: opacity 1s;
transition: opacity 1s;
}
#设置
特异性太高,请尝试:
#settings.seen {
display:block;
opacity: 1;
color:pink;
-webkit-transition: opacity 1s;
-moz-transition: opacity 1s;
-o-transition: opacity 1s;
-ms-transition: opacity 1s;
transition: opacity 1s;
}
如果您确定该类正在更改,那么这个问题严格来说是css。怎么了?如何使用jquery来促进淡入?请检查js错误控制台:
uncaughttypeerror:Object#没有方法“select”
(在您的实时站点上,现在),如果您确定类正在更改,那么这个问题完全是css问题。怎么了?如何使用jquery来促进淡入?请检查您的js错误控制台:uncaughttypeerror:Object#没有方法“select”
(在您的实时站点上,现在)此外,当我单击设置链接时,一些东西正在设置上放置{display:none}。我尝试了,现在该框显示出来了。然而,它并没有进入它,而是直接进入完全不透明度。好了,明白了。我不得不删除display:none,只是将不透明度设为0。另外,当我单击设置链接时,有东西将{display:none}放在了#设置上。我尝试过了,现在这个框出现了。然而,它并没有进入它,而是直接进入完全不透明度。好了,明白了。我必须删除显示:无,只是使不透明度为0