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CSS3如何實(shí)現(xiàn)彈跳的小球動(dòng)畫-創(chuàng)新互聯(lián)
小編給大家分享一下CSS3如何實(shí)現(xiàn)彈跳的小球動(dòng)畫，相信大部分人都還不怎么了解，因此分享這篇文章給大家參考一下，希望大家閱讀完這篇文章后大有收獲，下面讓我們一起去了解一下吧！
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這個(gè)案例關(guān)鍵點(diǎn)在于小球彈跳的節(jié)奏感和布局定位。
一、案例知識(shí)點(diǎn)
1、相對(duì)和絕對(duì)定位
2、多個(gè)animation動(dòng)畫列隊(duì)
二、主體代碼
1、HTML代碼
2、CSS部分代碼
#wrap{
position:absolute;
left:0;
right:0;
top:0;
bottom:0;
width:580px;
height:143px;
margin:auto;
}
#wrap img{
width:160px;
}
#wrap div{
float:left;
margin-right:50px;}
#wrap div:last-child{
margin-right:0;}
.tu1,.tu2,.tu3{
position:absolute;
left:50%;
margin-left:-80px;
}
.tu1{
z-index:1;
animation:tiantiao1 0.5s ease-in 1 forwards,tiantiao2 0.2s ease-out 0.5s 1 forwards,tiantiao3 0.2s ease-in 0.7s 1 forwards,tiantiao4 0.15s ease-out 0.9s 1 forwards,tiantiao5 0.15s ease-in 1.05s 1 forwards,leftMove 0.4s ease-out 1.2s 1 forwards,rotate 1s linear 1.6s infinite;
}
.tu2{
z-index:2;
animation:tiantiao1 0.5s ease-in 1 forwards,tiantiao2 0.2s ease-out 0.5s 1 forwards,tiantiao3 0.2s ease-in 0.7s 1 forwards,tiantiao4 0.15s ease-out 0.9s 1 forwards,tiantiao5 0.15s ease-in 1.05s 1 forwards,middle 0.4s ease-out 1.2s 1 forwards;
}
.tu3{
z-index:3;
animation:tiantiao1 0.5s ease-in 1 forwards,tiantiao2 0.2s ease-out 0.5s 1 forwards,tiantiao3 0.2s ease-in 0.7s 1 forwards,tiantiao4 0.15s ease-out 0.9s 1 forwards,tiantiao5 0.15s ease-in 1.05s 1 forwards,rightMove 0.4s ease-out 1.2s 1 forwards;
}
@keyframes tiantiao1{
0%{
transform:translateY(-500px);
}
100%{
transform:translateY(0);}
}
@keyframes tiantiao2{
0%{
transform:translateY(0);}
100%{
transform:translateY(-100px);}}
@keyframes tiantiao3{
0%{
transform:translateY(-100px);}
100%{
transform:translateY(0);}}
@keyframes tiantiao4{
0%{
transform:translateY(0px);}
100%{
transform:translateY(-50px);}}
@keyframes tiantiao5{
0%{
transform:translateY(-50px);}
100%{
transform:translateY(0);}
}
@keyframes leftMove{
0%{
transform:translateX(0);}
100%{
transform:translateX(-300px) scale(1.6);
}}
@keyframes rightMove{
0%{
transform:translateX(0);}
100%{
transform:translateX(300px) scale(1.6);
}}
@keyframes middle{
0%{
transform:translateX(0);
}
100%{
transform:translateX(0) scale(1.6);
}}多個(gè)隊(duì)列的動(dòng)畫要注意動(dòng)畫的延遲。上一個(gè)隊(duì)列的動(dòng)畫執(zhí)行完畢后才執(zhí)行下一個(gè)隊(duì)列的動(dòng)畫。
完整頁面代碼
小球掉落依次排列動(dòng)畫
body,div,footer,p{
margin:0;
padding:0;}
body{
font:1em "microsoft Yahei";
background-color:#eee;}
#wrap{
position:absolute;
left:0;
right:0;
top:0;
bottom:0;
width:580px;
height:143px;
margin:auto;
}
#wrap img{
width:160px;
}
#wrap div{
float:left;
margin-right:50px;}
#wrap div:last-child{
margin-right:0;}
.tu1,.tu2,.tu3{
position:absolute;
left:50%;
margin-left:-80px;
}
.tu1{
z-index:1;
animation:tiantiao1 0.5s ease-in 1 forwards,tiantiao2 0.2s ease-out 0.5s 1 forwards,tiantiao3 0.2s ease-in 0.7s 1 forwards,tiantiao4 0.15s ease-out 0.9s 1 forwards,tiantiao5 0.15s ease-in 1.05s 1 forwards,leftMove 0.4s ease-out 1.2s 1 forwards,rotate 1s linear 1.6s infinite;
}
.tu2{
z-index:2;
animation:tiantiao1 0.5s ease-in 1 forwards,tiantiao2 0.2s ease-out 0.5s 1 forwards,tiantiao3 0.2s ease-in 0.7s 1 forwards,tiantiao4 0.15s ease-out 0.9s 1 forwards,tiantiao5 0.15s ease-in 1.05s 1 forwards,middle 0.4s ease-out 1.2s 1 forwards;
}
.tu3{
z-index:3;
animation:tiantiao1 0.5s ease-in 1 forwards,tiantiao2 0.2s ease-out 0.5s 1 forwards,tiantiao3 0.2s ease-in 0.7s 1 forwards,tiantiao4 0.15s ease-out 0.9s 1 forwards,tiantiao5 0.15s ease-in 1.05s 1 forwards,rightMove 0.4s ease-out 1.2s 1 forwards;}
footer{
position:absolute;
bottom:20px;
left:50%;
margin-left:-104px;
}
footer p{
text-align:center;
margin-bottom:.7em;}
footer a{
color:#666;
text-decoration:none;}
footer a:hover{
color:#333;}
@keyframes tiantiao1{
0%{
transform:translateY(-500px);
}
100%{
transform:translateY(0);}
}
@keyframes tiantiao2{
0%{
transform:translateY(0);}
100%{
transform:translateY(-100px);}}
@keyframes tiantiao3{
0%{
transform:translateY(-100px);}
100%{
transform:translateY(0);}}
@keyframes tiantiao4{
0%{
transform:translateY(0px);}
100%{
transform:translateY(-50px);}}
@keyframes tiantiao5{
0%{
transform:translateY(-50px);}
100%{
transform:translateY(0);}
}
@keyframes leftMove{
0%{
transform:translateX(0);}
100%{
transform:translateX(-300px) scale(1.6);
}}
@keyframes rightMove{
0%{
transform:translateX(0);}
100%{
transform:translateX(300px) scale(1.6);
}}
@keyframes middle{
0%{
transform:translateX(0);
}
100%{
transform:translateX(0) scale(1.6);
}}
