css是一种用来表现HTML或XML等文件样式的计算机语言,主要是用来设计网页的样式,使网页更加美化。它也是一种定义样式结构如字体、颜色、位置等的语言,并且css样式可以直接存储于HTML网页或者单独的样式单文件中,而样式规则的优先级由css根据这个层次结构决定,从而实现级联效果,发展至今,css不仅能装饰网页,也可以配合各种脚本对于网页进行格式化。
body{
background: #333;
}
h2{
text-align: center;
color:#fff;
}
.timezone{
width:6px;
height: 350px;
background: lightblue;
margin: 0 auto;
margin-top:50px;
border-radius: 3px;
position: relative;
-webkit-animation: heightSlide 2s linear;
}
@-webkit-keyframes heightSlide{
0%{
height: 0;
}
100%{
height: 350px;
}
}
.timezone:after{
content: '未完待续...';
width: 100px;
color:#fff;
position: absolute;
margin-left: -35px;
bottombottom: -30px;
-webkit-animation: showIn 4s ease;
}
.timezone .time,.timezone .timeLeft{
position: absolute;
margin-left: -10px;
margin-top:-10px;
width:20px;
height:20px;
border-radius: 50%;
border:4px solid rgba(255,255,255,0.5);
background: lightblue;
-webkit-transition: all 0.5s;
-webkit-animation: showIn ease;
}
.timezone .time:nth-child(1){
-webkit-animation-duration:1s;
}
.timezone .timeLeft:nth-child(2){
-webkit-animation-duration:1.5s;
}
.timezone .time:nth-child(3){
-webkit-animation-duration:2s;
}
.timezone .timeLeft:nth-child(4){
-webkit-animation-duration:2.5s;
}
@-webkit-keyframes showIn{
0%,70%{
opacity: 0;
}
100%{
opacity: 1;
}
}
.timezone .time h3,.timezone .timeLeft h3{
position: absolute;
margin-left: -120px;
margin-top: 3px;
color:#eee;
font-size: 14px;
cursor:pointer;
-webkit-animation: showIn 3s ease;
}
.timezone .timeLeft h3{
margin-left: 60px;
width: 100px;
}
.timezone .time:hover,.timezone .timeLeft:hover{
border:4px solid lightblue;
background: lemonchiffon;
box-shadow: 0 0 2px 2px rgba(255,255,255,0.4);
}
.timezone .time div,.timezone .timeLeft div{
position: absolute;
top:50%;
margin-top: -25px;
left:50px;
width: 300px;
height: 50px;
background: lightblue;
border:3px solid #eee;
border-radius: 10px;
z-index: 2;
overflow: hidden;
cursor:pointer;
-webkit-animation: showIn 3s ease;
-webkit-transition: all 0.5s;
}
.timezone .timeLeft div{
left:-337px;
}
.timezone .time div:hover,.timezone .timeLeft div:hover{
height: 170px;
}
.timezone .time div p,.timezone .timeLeft div p{
color: #fff;
font-weight: bold;
text-align: center;
}
.timezone .time:before,.timezone .timeLeft:before{
content: '';
position: absolute;
top:0px;
left: 32px;
width: 0px;
height: 0px;
border:10px solid transparent;
border-right:10px solid #eee;
z-index:-1;
-webkit-animation: showIn 3s ease;
}
.timezone .timeLeft:before{
left:-33px;
border:10px solid transparent;
border-left:10px solid #eee;
}
.timezone .time div ul,.timezone .timeLeft div ul{
list-style: none;
width:300px;
padding:5px 0 0;
border-top:2px solid #eee;
color:#fff;
text-align: center;
}
.timezone .time div li,.timezone .timeLeft div li{
display: inline-block;
height: 25px;
line-height: 25px;
}