第一種：選項卡單擊點擊切換
<!DOCTYPE html>
<html>
<head>
<metacharset="utf-8" />
<title>選項卡-點擊觸發效果</title>
<styletype="text/css">
*{
margin:0;
padding:0;
list-style:none;
}
body{
background:#58596B;
display:flex;
justify-content:center;
}
#box{
margin-top:10%;
}
.boxul{
width:600px;
height:60px;
background:#33344A;
}
.boxul li{
float:left;
transition:0.3s;
}
.boxul li a{
display:block;
width:100px;
height:60px;
line-height:60px;
/*border:1px solid red;*/
text-decoration:none;
text-align:center;
color:#717181;
font-size:15px;
}
.boxtwo{
clear:left;
}
.boxtwoul{
width:600px;
height:300px;
background:white;
}
.boxtwoul li{
position:absolute;
transition:0.3s;
padding:30px;
font-family:"微軟雅黑";
font-size:15px;
width:600px;
height:10px;
}
.show{
opacity:3;
}
.hide{
opacity:0;
}
.bj{
background:#e74c3c;
}
</style>
<scripttype="text/javascript">
window.onload=function(){
varOneLi=document.getElementsByClassName('box')[0].getElementsByTagName('li');
varTwoLi=document.getElementsByClassName('boxtwo')[0].getElementsByTagName('li');
vara=document.getElementsByClassName('box')[0].getElementsByTagName('a')
OneLi[0].className='bj'
a[0].style.color='white'
for(vari=0;i<OneLi.length;i++){
OneLi[i].index=i
OneLi[i].onclick=function(){
varnum=parseInt(this.index)
for(varj=0;j<OneLi.length;j++){
OneLi[j].className=''
TwoLi[j].className='hide'
a[j].style.color=''
}
OneLi[num].className='bj'
TwoLi[num].className='show'
a[num].style.color='white'
}
}
}
</script>
</head>
<body>
<pid="box">
<divclass="box">
<ul>
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</ul>
</p>
<pclass="boxtwo">
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</body>
</html>