我是html/css/js新手,一直在做元素教程来学习里面的内容。我查看了其他 JS 按钮问题,但不确定它如何适用于我的案例(因为我是新手)。
该元素要求我们创建一个机器人,它在单击按钮后眼睛会闪烁。如果再次单击该按钮,则闪烁停止。
相关代码如下:
<!DOCTYPE html>
<head>
<script src="/assets/jquery.js"></script>
<link href='https://fonts.googleapis.com/css?family=Poller+One' rel='stylesheet' type='text/css'>
<style>
...
/* Other parts of robot */
@keyframes blink {
50% {
background: radial-gradient(circle, red 15%, transparent 40%), #cc5;
background-size: 75px 150px;
}
}
@-webkit-keyframes blink {
50% {
background: -webkit-radial-gradient(circle, red 15%, transparent 40%), #cc5;
background-size: 75px 150px;
}
}
@-moz-keyframes blink {
50% {
background: -moz-radial-gradient(circle, red 15%, transparent 40%), #cc5;
background-size: 75px 150px;
}
}
.laser {
animation: blink 5s infinite;
-webkit-animation: blink 5s infinite;
-moz-animation: blink 5s infinite;
}
.brain {
background: radial-gradient(circle, white 15%, transparent 40%), #cc5;
background: -moz-radial-gradient(circle, white 15%, transparent 40%), #cc5;
background: -webkit-radial-gradient(circle, white 15%, transparent 40%), #cc5;
background-size: 75px 150px;
height: 150px;
width: 150px;
border-radius: 60px 60px 10px 10px;
border-bottom: 40px solid #666;
position: relative;
left: 70px;
}
.foot {
...
}
</style>
</head>
<body>
<div class="robot">
<div class="beep"></div>
<div class="brain"></div>
<div class="torso">
<div class="left">j</div>
<div class="right">j</div>
</div>
<div class="foot"></div>
</div>
<button class="flash">laser eyes on/off</button>
<button class="color">change color!</button>
<script>
// Button to toggle
$('.flash').click(function() {
$('.brain').toggleClass('laser');
});
</script>
</body>
我想知道是否有任何特别错误的地方,因为我不确定如何更正它,即使我已根据教程将所有内容都放在正确的位置。有人提到在 HTML 元素中包含更多 CSS 标识,但我不确定这将如何改变这里的任何内容。
最佳答案
又是一个不将 jQuery 代码包装在 $(document).ready(function(){})
中的情况
将您的 jQuery 代码更改为,
$(document).ready(function(){
$('.flash').click(function() {
$('.brain').toggleClass('laser');
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js"></script>
<!DOCTYPE html>
<head>
<link href='https://fonts.googleapis.com/css?family=Poller+One' rel='stylesheet' type='text/css'>
<style>
...
/* Other parts of robot */
@keyframes blink {
50% {
background: radial-gradient(circle, red 15%, transparent 40%), #cc5;
background-size: 75px 150px;
}
}
@-webkit-keyframes blink {
50% {
background: -webkit-radial-gradient(circle, red 15%, transparent 40%), #cc5;
background-size: 75px 150px;
}
}
@-moz-keyframes blink {
50% {
background: -moz-radial-gradient(circle, red 15%, transparent 40%), #cc5;
background-size: 75px 150px;
}
}
.laser {
animation: blink 5s infinite;
-webkit-animation: blink 5s infinite;
-moz-animation: blink 5s infinite;
}
</style>
</head>
<body>
<div class="robot">
<div class="beep"></div>
<div class="brain" height="50px">df</div>
<div class="torso">
<div class="left">j</div>
<div class="right">j</div>
</div>
<div class="foot"></div>
</div>
<button class="flash">laser eyes on/off</button>
<button class="color">change color!</button>
<script>
// Button to toggle
$(document).ready(function(){
$('.flash').click(function() {
$('.brain').toggleClass('laser');
});
});
</script>
</body>
关于用于切换类问题的 Javascript 按钮,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/31503671/