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case
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1.照片黑白显示
img{
filter: grayscale(100%);
-webkit-filter: grayscale(100%);
-moz-filter: grayscale(100%);
-ms-filter: grayscale(100%);
-o-filter: grayscale(100%);
}
2./* add border */
.nav li { .nav li:last-child { .nav li:not(:last-child) {
border-right: 1px solid #666; + border-right: none; == border-right: 1px solid #666;
} } }
3.页面顶部背影
body:before{
content: "";
position: fixed;
top: -10px;
left: 0;
width: 100%;
height: 10px;
-webkit-box-shadow: 0px 0px 10px rgba(0,0,0,.8);
-moz-box-shadow: 0px 0px 10px rgba(0,0,0,.8);
box-shadow: 0px 0px 10px rgba(0,0,0,.8);
z-index: 100;
}
4.将所有元素垂直居中
html, body {
height: 100%;
margin: 0;
}
body {
-webkit-align-items: center;
-ms-flex-align: center;
align-items: center;
display: -webkit-flex;
display: flex;
}
5.当a元素没有文本值,但 href 属性有链接的时候显示链接:
a[href^="http"]:empty::before {
content: attr(href);
}
6.检测鼠标双击
<div class="test3">
<span><input type="text" value=" " readonly="true" />
<a href="http://renpingjun.com">Double click me</a></span>
</div>
.test3 span {
position: relative;
}
.test3 span a {
position: relative;
z-index: 2;
}
.test3 span a:hover, .test3 span a:active {
z-index: 4;
}
.test3 span input {
background: transparent;
border: 0;
cursor: pointer;
position: absolute;
top: -1px;
left: 0;
width: 101%; /* Hacky */
height: 301%; /* Hacky */
z-index: 3;
}
.test3 span input:focus {
background: transparent;
border: 0;
z-index: 1;
}
7.文本模糊效果
.blur {
color: transparent;
text-shadow: 0 0 5px rgba(0,0,0,0.5);
}