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CSS代码片段【图文】
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1、垂直对齐
.verticalcenter{
position: relative;
top: 50%;
-webkit-transform: translateY(-50%);
-o-transform: translateY(-50%);
transform: translateY(-50%);
}
2、图片增加灰度
首先创svg
<svg xmlns="http://www.w3.org/2000/svg">
<filter id="grayscale">
<feColorMatrix type="matrix" values="0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0 0 0 1 0"/>
</filter>
</svg>
然后是图片
img {
filter: url(filters.svg#grayscale); /* Firefox 3.5+ */
filter: gray; /* IE6-9 */
-webkit-filter: grayscale(1); /* Google Chrome, Safari 6+ & Opera 15+ */
}
效果图：
原图：
3、背景渐变动画
button {
background-image: linear-gradient(#5187c4, #1c2f45);
background-size: auto 200%;
background-position: 0 100%;
transition: background-position 0.5s;
}
button:hover {
background-position: 0 0;
}
效果图：
hover后的样子：
4、只在一边或者两边显示阴影
.box-shadow {
background-color: #FF8020;
width: 160px;
height: 90px;
margin-top: -45px;
margin-left: -80px;
position: absolute;
top: 50%;
left: 50%;
}
.box-shadow:after {
content: "";
width: 150px;
height: 1px;
margin-top: 88px;
margin-left: -75px;
display: block;
position: absolute;
left: 50%;
z-index: -1;
-webkit-box-shadow: 0px 0px 8px 2px #000000;
-moz-box-shadow: 0px 0px 8px 2px #000000;
box-shadow: 0px 0px 8px 2px #000000;
}
5、制造模糊文本
.blurry-text {
color: transparent;
text-shadow: 0 0 5px rgba(0,0,0,0.5);
}
6、用css动画制造省略号动画
.loading:after {
overflow: hidden;
display: inline-block;
vertical-align: bottom;
animation: ellipsis 2s infinite;
content: "\2026"; /* ascii code for the ellipsis character */
}
@keyframes ellipsis {
from {
width: 2px;
}
to {
width: 15px;
}
}
7、图片边框偏光
img.polaroid {
background:#000; /*Change this to a background image or remove*/
border:solid #fff;
border-width:6px 6px 20px 6px;
box-shadow:1px 1px 5px #333; /* Standard blur at 5px. Increase for more depth */
-webkit-box-shadow:1px 1px 5px #333;
-moz-box-shadow:1px 1px 5px #333;
height:200px; /*Set to height of your image or desired div*/
width:200px; /*Set to width of your image or desired div*/
}
8、缝合CSS3元素
p {
position:relative;
z-index:1;
padding: 10px;
margin: 10px;
font-size: 21px;
line-height: 1.3em;
color: #fff;
background: #ff0030;
-webkit-box-shadow: 0 0 0 4px #ff0030, 2px 1px 4px 4px rgba(10,10,0,.5);
-moz-box-shadow: 0 0 0 4px #ff0030, 2px 1px 4px 4px rgba(10,10,0,.5);
box-shadow: 0 0 0 4px #ff0030, 2px 1px 6px 4px rgba(10,10,0,.5);
-webkit-border-radius: 3px;
-moz-border-radius: 3px;
border-radius: 3px;
}
p:before {
content: "";
position: absolute;
z-index: -1;
top: 3px;
bottom: 3px;
left :3px;
right: 3px;
border: 2px dashed #fff;
}
p a {
color: #fff;
text-decoration:none;
}
p a:hover, p a:focus, p a:active {
text-decoration:underline;
}
9、三角形列表项目符号
ul {
margin: 0.75em 0;
padding: 0 1em;
list-style: none;
}
li:before {
content: "";
border-color: transparent #111;
border-style: solid;
border-width: 0.35em 0 0.35em 0.45em;
display: block;
height: 0;
width: 0;
left: -1em;
top: 0.9em;
position: relative;
}
10、网页顶部盒阴影
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;
}
11、css3对话泡泡
.chat-bubble {
background-color: #ededed;
border: 2px solid #666;
font-size: 35px;
line-height: 1.3em;
margin: 10px auto;
padding: 10px;
position: relative;
text-align: center;
width: 300px;
-moz-border-radius: 20px;
-webkit-border-radius: 20px;
-moz-box-shadow: 0 0 5px #888;
-webkit-box-shadow: 0 0 5px #888;
font-family: 'Bangers', arial, serif;
}
.chat-bubble-arrow-border {
border-color: #666 transparent transparent transparent;
border-style: solid;
border-width: 20px;
height: 0;
width: 0;
position: absolute;
bottom: -42px;
left: 30px;
}
.chat-bubble-arrow {
border-color: #ededed transparent transparent transparent;
border-style: solid;
border-width: 20px;
height: 0;
width: 0;
position: absolute;
bottom: -39px;
left: 30px;
}
12、纯CSS背景噪音
body {
background-image: url(data:image/png;base64,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);
background-color: #0094d0;
}
13、自动排序列表
ol.chapters {
list-style: none;
margin-left: 0;
}
ol.chapters > li:before {
content: counter(chapter) ". ";
counter-increment: chapter;
font-weight: bold;
float: left;
width: 40px;
}
ol.chapters li {
clear: left;
}
ol.start {
counter-reset: chapter;
}
ol.continue {
counter-reset: chapter 11;
}
14、css悬浮提示文本
a {
border-bottom:1px solid #bbb;
color:#666;
display:inline-block;
position:relative;
text-decoration:none;
}
a:hover,
a:focus {
color:#36c;
}
a:active {
top:1px;
}
/* Tooltip styling */
a[data-tooltip]:after {
border-top: 8px solid #222;
border-top: 8px solid hsla(0,0%,0%,.85);
border-left: 8px solid transparent;
border-right: 8px solid transparent;
content: "";
display: none;
height: 0;
width: 0;
left: 25%;
position: absolute;
}
a[data-tooltip]:before {
background: #222;
background: hsla(0,0%,0%,.85);
color: #f6f6f6;
content: attr(data-tooltip);
display: none;
font-family: sans-serif;
font-size: 14px;
height: 32px;
left: 0;
line-height: 32px;
padding: 0 15px;
position: absolute;
text-shadow: 0 1px 1px hsla(0,0%,0%,1);
white-space: nowrap;
-webkit-border-radius: 5px;
-moz-border-radius: 5px;
-o-border-radius: 5px;
border-radius: 5px;
}
a[data-tooltip]:hover:after {
display: block;
top: -9px;
}
a[data-tooltip]:hover:before {
display: block;
top: -41px;
}
a[data-tooltip]:active:after {
top: -10px;
}
a[data-tooltip]:active:before {
top: -42px;
}
15、css3特色横幅显示
.featureBanner {
position: relative;
margin: 20px
}
.featureBanner:before {
content: "Featured";
position: absolute;
top: 5px;
left: -8px;
padding-right: 10px;
color: #232323;
font-weight: bold;
height: 0px;
border: 15px solid #ffa200;
border-right-color: transparent;
line-height: 0px;
box-shadow: -0px 5px 5px -5px #000;
z-index: 1;
}
.featureBanner:after {
content: "";
position: absolute;
top: 35px;
left: -8px;
border: 4px solid #89540c;
border-left-color: transparent;
border-bottom-color: transparent;
}
参考文献
