CSS过度动画
<!DOCTYPE html>
<html>
<head>
<title>css过渡动画</title>
<style type="text/css">
.box{
width: 100px;
height: 100px;
background-color: gold;
/*在哪产生动画、动画的时间、运动曲线、延迟*/
/*transition: width 150ms ease,height 150ms ease 500ms,background-color 500ms ease 1s,border-radius 500ms ease 1s;*/
transition: all 500ms ease;
}
.box:hover{
width: 500px;
height: 300px;
background-color: red;
border-radius: 50px;
}
</style>
</head>
<body>
<div class="box"></div>
</body>
</html>
圆角 阴影 透明度
<!DOCTYPE html>
<html>
<head>
<title>y圆角、阴影、透明度</title>
<style type="text/css">
.box{
width: 200px;
height: 200px;
bord:2px solid #000;
background-color: gold;
margin:50px auto 0;
/*border-top-left-radius: 100px 50px;左上角为椭圆圆角*/
/*border-top-left-radius: 100px;*/
/*border-top-right-radius: 100px;左、右上角为正圆圆角*/
/*border-radius: 40px;曲率半径为40的圆角矩形*/
/*border-radius: 20%;最大200px,20%既40px*/
border-radius: 50%;/*正圆*/
}
.box1{
width: 200px;
height: 40px;
background-color: gold;
margin: 100px auto 0;
/*水平偏移 垂直偏移 羽化大小 扩展大小 颜色*/
box-shadow: 10px 10px 10px 0px #bfa;
}
.box2{
width: 200px;
height: 40px;
background-color: gold;
margin: 100px auto 0;
/*水平偏移 垂直偏移 羽化大小 扩展大小 颜色 是否内阴影*/
box-shadow: 0px 0px 20px 2px red inset;
}
body{
background-color: cyan;
}
.box3{
width: 200px;
height: 200px;
/*background:url();*/
background-color: gold;
margin: 50px auto 0;
border:2px solid #000;
border-radius: 50%;
/*透明度30%,文字也透明了*/
opacity: 0.3;
filter: alpha(opacity=30);/*兼容IE*/
text-align: center;
line-height: 200px;
}
.box4{
width: 200px;
height: 200px;
/*背景色变透明，但文字不会透明*/
background-color: rgba(255,215,0,0.3);
margin: 50px auto 0;
/*边框透明*/
border:2px solid rgba(0,0,0,0.3);
border-radius: 50%;
text-align: center;
line-height: 200px;
}
</style>
</head>
<body>
<div class="box"></div>
<div class="box1"></div>
<div class="box2"></div>
<div class="box3">床前明月光</div>
<div class="box4">床前明月光</div>
</body>
</html>
CSS3圆角
设置某一个角的圆角，比如设置左上角的圆角：
border-top-left-radius:30px 60px;同时分别设置四个角： border-radius:30px 60px 120px 150px;
设置四个圆角相同：
border-radius:50%;
CSS3阴影
box-shadow：h-shadow v-shadow blur spread color inset;
分别设置阴影：水平偏移 垂直偏移 羽化大小 扩展大小 颜色 是否内阴影
遮罩
<!DOCTYPE html>
<html>
<head>
<title>图片文字遮罩</title>
<style type="text/css">
.box{
width: 300px;
height: 300px;
margin: 50px auto 0;
border-right: 1px solid #000;
position: relative;
overflow: hidden;
}
.box img{
width: 300px;
height: 300px;
}
.box .pic_info{
width: 300px;
height: 300px;
background-color: rgba(0,0,0,0.5);
color: #fff;
position: absolute;
left: 0;
top:300px;
}
.box:hover .pic_info{
top:150px;
}
.box .pic_info p{
margin: 30px;
line-height: 20px;
}
</style>
</head>
<body>
<div class="box">
<img src="1.jpg">
<div class="pic_info">
<p>这是</p>
</div>
</div>
</body>
</html>
