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本篇文章為大家解決在寫css屬性的時(shí)候遇到一些問題，比如說：垂直對(duì)齊，垂直居中，背景漸變動(dòng)畫，表格寬度自適應(yīng)，模糊文本，樣式重置，清除浮動(dòng)，通用媒體查詢，自定義選擇文本，強(qiáng)制出現(xiàn)滾動(dòng)條，固定頭部和頁腳。
css代碼片段
1、垂直對(duì)齊 如果你用CSS，則你會(huì)有困惑：我該怎么垂直對(duì)齊容器中的元素？現(xiàn)在，利用CSS3的Transform，可以很優(yōu)雅的解決這個(gè)困惑：
.verticalcenter{
position: relative;
top: 50%;
-webkit-transform: translateY(-50%);
-o-transform: translateY(-50%);
transform: translateY(-50%);
}復(fù)制代碼使用這個(gè)技巧，從單行文本、段落到box，都會(huì)垂直對(duì)齊。目前瀏覽器對(duì)Transform的支持是需要關(guān)注的，Chrome 4, Opera 10, Safari 3, Firefox 3, and Internet Explorer 9均支持該屬性
2、伸展一個(gè)元素到窗口高度在具體場(chǎng)景中，你可能想要將一個(gè)元素伸展到窗口高度，基本元素的調(diào)整只能調(diào)整容器的大小,因此要使一個(gè)元素伸展到窗口高度，我們需要伸展頂層元素：html和body:html,
body {
height: 100%;
}復(fù)制代碼然后將100%應(yīng)用到任何元素的高div
{
height: 100%;
}3、基于文件格式使用不同的樣式為了更容易知道鏈接的目標(biāo)，有時(shí)你想讓一些鏈接看起來和其它的不同。下面的片段在文本鏈接前添加一個(gè)圖標(biāo)，對(duì)不同的資源使用不同的圖標(biāo)或圖片：
a[href^="http://"]{
padding-right: 20px;
background: url(external.gif) no-repeat center right;
}
/* emails */
a[href^="mailto:"]{
padding-right: 20px;
background: url(email.png) no-repeat center right;
}
/* pdfs */
a[href$=".pdf"]{
padding-right: 20px;
background: url(pdf.png) no-repeat center right;
}4、背景漸變動(dòng)畫CSS中最具誘惑的一個(gè)功能是能添加動(dòng)畫效果，除了漸變，你可以給背景色、透明度、元素大小添加動(dòng)畫。目前，你不能為漸變添加動(dòng)畫，但下面的代碼可能有幫助。它通過改變背景位置，讓它看起來有動(dòng)畫效果。
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;
}5、CSS：表格列寬自適用對(duì)于表格，當(dāng)談到調(diào)整列寬時(shí)，是比較痛苦的。然后，這里有一個(gè)可以使用的技巧：給td元素添加white-space: nowrap;能讓文本正確的換行
td {
white-space: nowrap;
}6、只在一邊或兩邊顯示盒子陰影 如果你要一個(gè)盒陰影，試試這個(gè)技巧，能為任一邊添加陰影。為了實(shí)現(xiàn)這個(gè)，首先定義一個(gè)有具體寬高的盒子，然后正確定位:after偽類。實(shí)現(xiàn)底邊陰影的代碼如下
.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;
}7、包裹長文本 如果你碰到一個(gè)比自身容器長的文本，這個(gè)技巧對(duì)你很有用。在這個(gè)示例中，默認(rèn)時(shí)，不管容器的寬度，文本都將水平填充。簡單的CSS代碼就能在容器中調(diào)整文本：
pre {
white-space: pre-line;
word-wrap: break-word;
}效果看起來如下：
8、制造模糊文本 想要讓文本模糊？可以使用color透明和text-shadow實(shí)現(xiàn)
.blurry-text {
color: transparent;
text-shadow: 0 0 5px rgba(0,0,0,0.5);
}9、用CSS動(dòng)畫實(shí)現(xiàn)省略號(hào)動(dòng)畫 這個(gè)片段將幫助你制造一個(gè)ellipsis的動(dòng)畫，對(duì)于簡單的加載狀態(tài)是很有用的，而不用去使用gif圖像。
.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;
}
}10、樣式重置
html, body, div, span, applet, object, iframe, h2, h3, h4, h5, h6, h7, p, blockquote, pre, a, abbr, acronym, address, big, cite, code, del, dfn, em, img, ins, kbd, q, s, samp, small, strike, strong, sub, sup, tt, var, b, u, i, center, dl, dt, dd, ol, ul, li, fieldset, form, label, legend, table, caption, tbody, tfoot, thead, tr, th, td, article, aside, canvas, details, embed, figure, figcaption, footer, header, hgroup, menu, nav, output, ruby, section, summary, time, mark, audio, video {
margin: 0;
padding: 0;
border: 0;
font-size: 100%;
font: inherit;
vertical-align: baseline;
outline: none;
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
box-sizing: border-box;
}
html { height: 101%; }
body { font-size: 62.5%; line-height: 1; font-family: Arial, Tahoma, sans-serif; }
article, aside, details, figcaption, figure, footer, header, hgroup, menu, nav, section { display: block; }
ol, ul { list-style: none; }
blockquote, q { quotes: none; }
blockquote:before, blockquote:after, q:before, q:after { content: ''; content: none; }
strong { font-weight: bold; }
table { border-collapse: collapse; border-spacing: 0; }
img { border: 0; max-width: 100%; }
p { font-size: 1.2em; line-height: 1.0em; color: #333; }復(fù)制代碼11、典型的CSS清除浮動(dòng).clearfix:after {
content: ".";
display: block;
clear: both;
visibility: hidden;
line-height: 0;
height: 0;
}
.clearfix { display: inline-block; }
html[xmlns] .clearfix { display: block; }
* html .clearfix { height: 1%; }復(fù)制代碼12、新版清除浮動(dòng)（2011）.clearfix:before, .container:after { content: ""; display: table; }
.clearfix:after { clear: both; }
/* IE 6/7 */
.clearfix { zoom: 1; }復(fù)制代碼13、跨瀏覽器的透明.transparent {
filter: alpha(opacity=50); /* internet explorer */
-khtml-opacity: 0.5; /* khtml, old safari */
-moz-opacity: 0.5; /* mozilla, netscape */
opacity: 0.5; /* fx, safari, opera */
}14、通用媒體查詢
/* Smartphones (portrait and landscape) ----------- */
@media only screen
and (min-device-width : 320px) and (max-device-width : 480px) {
/* Styles */
}
/* Smartphones (landscape) ----------- */
@media only screen and (min-width : 321px) {
/* Styles */
}
/* Smartphones (portrait) ----------- */
@media only screen and (max-width : 320px) {
/* Styles */
}
/* iPads (portrait and landscape) ----------- */
@media only screen and (min-device-width : 768px) and (max-device-width : 1024px) {
/* Styles */
}
/* iPads (landscape) ----------- */
@media only screen and (min-device-width : 768px) and (max-device-width : 1024px) and (orientation : landscape) {
/* Styles */
}
/* iPads (portrait) ----------- */
@media only screen and (min-device-width : 768px) and (max-device-width : 1024px) and (orientation : portrait) {
/* Styles */
}
/* Desktops and laptops ----------- */
@media only screen and (min-width : 1224px) {
/* Styles */
}
/* Large screens ----------- */
@media only screen and (min-width : 1824px) {
/* Styles */
}
/* iPhone 4 ----------- */
@media only screen and (-webkit-min-device-pixel-ratio:1.5), only screen and (min-device-pixel-ratio:1.5) {
/* Styles */
}15、自定義文本選擇
::selection { background: #e2eae2; }
::-moz-selection { background: #e2eae2; }
::-webkit-selection { background: #e2eae2; }復(fù)制代碼16、為logo隱藏H1h2 {
text-indent: -9999px;
margin: 0 auto;
width: 320px;
height: 85px;
background: transparent url("images/logo.png") no-repeat scroll;
}17、錨鏈接偽類
a:link { color: blue; }
a:visited { color: purple; }
a:hover { color: red; }
a:active { color: yellow; }18、CSS3：全屏背景
html {
background: url('images/bg.jpg') no-repeat center center fixed;
-webkit-background-size: cover;
-moz-background-size: cover;
-o-background-size: cover;
background-size: cover;
}19、內(nèi)容垂直居中
.container {
min-height: 6.5em;
display: table-cell;
vertical-align: middle;
}20、強(qiáng)制出現(xiàn)垂直滾動(dòng)條
html { height: 101% }復(fù)制代碼21、CSS3漸變模板#colorbox {
background: #629721;
background-image: -webkit-gradient(linear, left top, left bottom, from(#83b842), to(#629721));
background-image: -webkit-linear-gradient(top, #83b842, #629721);
background-image: -moz-linear-gradient(top, #83b842, #629721);
background-image: -ms-linear-gradient(top, #83b842, #629721);
background-image: -o-linear-gradient(top, #83b842, #629721);
background-image: linear-gradient(top, #83b842, #629721);
}22、CSS3 斑馬線
tbody tr:nth-child(odd) {
background-color: #ccc;
}23、內(nèi)部CSS3 盒陰影
#mydiv {
-moz-box-shadow: inset 2px 0 4px #000;
-webkit-box-shadow: inset 2px 0 4px #000;
box-shadow: inset 2px 0 4px #000;
}24、外部CSS3 盒陰影
#mydiv {
-webkit-box-shadow: 0 2px 2px -2px rgba(0, 0, 0, 0.52);
-moz-box-shadow: 0 2px 2px -2px rgba(0, 0, 0, 0.52);
box-shadow: 0 2px 2px -2px rgba(0, 0, 0, 0.52);
}25、三角形列表項(xiàng)目符號(hào)
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;
}26、固定寬度的居中布局
#page-wrap {
width: 800px;
margin: 0 auto;
}27、CSS3 列文本
#columns-3 {
text-align: justify;
-moz-column-count: 3;
-moz-column-gap: 12px;
-moz-column-rule: 1px solid #c4c8cc;
-webkit-column-count: 3;
-webkit-column-gap: 12px;
-webkit-column-rule: 1px solid #c4c8cc;
}28、CSS固定頁腳
#footer {
position: fixed;
left: 0px;
bottom: 0px;
height: 30px;
width: 100%;
background: #444;
}
/* IE 6 */
* html #footer {
position: absolute;
top: expression((0-(footer.offsetHeight)+(document.documentElement.clientHeight ? document.documentElement.clientHeight : document.body.clientHeight)+(ignoreMe = document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop))+'px');
}29、跨瀏覽器設(shè)置最小高度
#container {
min-height: 550px;
height: auto !important;
height: 550px;
}30、CSS3 鮮艷的輸入
input[type=text], textarea {
-webkit-transition: all 0.30s ease-in-out;
-moz-transition: all 0.30s ease-in-out;
-ms-transition: all 0.30s ease-in-out;
-o-transition: all 0.30s ease-in-out;
outline: none;
padding: 3px 0px 3px 3px;
margin: 5px 1px 3px 0px;
border: 1px solid #ddd;
}
input[type=text]:focus, textarea:focus {
box-shadow: 0 0 5px rgba(81, 203, 238, 1);
padding: 3px 0px 3px 3px;
margin: 5px 1px 3px 0px;
border: 1px solid rgba(81, 203, 238, 1);
}31、基于文件類型的鏈接樣式
/* external links */
a[href^="http://"] {
padding-right: 13px;
background: url('external.gif') no-repeat center right;
}
/* emails */
a[href^="mailto:"] {
padding-right: 20px;
background: url('email.png') no-repeat center right;
}
/* pdfs */
a[href$=".pdf"] {
padding-right: 18px;
background: url('acrobat.png') no-repeat center right;
}32、強(qiáng)制換行
pre {
white-space: pre-wrap; /* css-3 */
white-space: -moz-pre-wrap; /* Mozilla, since 1999 */
white-space: -pre-wrap; /* Opera 4-6 */
white-space: -o-pre-wrap; /* Opera 7 */
word-wrap: break-word; /* Internet Explorer 5.5+ */
}33、在可點(diǎn)擊的項(xiàng)目上強(qiáng)制手型
a[href], input[type='submit'], input[type='image'], label[for], select, button, .pointer {
cursor: pointer;
}34、CSS3對(duì)話氣泡
.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;
}35、H1-H5默認(rèn)樣式
h2,h3,h4,h5,h6{
color: #005a9c;
}
h2{
font-size: 2.6em;
line-height: 2.45em;
}
h3{
font-size: 2.1em;
line-height: 1.9em;
}
h4{
font-size: 1.8em;
line-height: 1.65em;
}
h5{
font-size: 1.65em;
line-height: 1.4em;
}
h6{
font-size: 1.4em;
line-height: 1.25em;
}36、CSS懸浮提示文本
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;
}37、深灰色的圓形按鈕
.graybtn {
-moz-box-shadow:inset 0px 1px 0px 0px #ffffff;
-webkit-box-shadow:inset 0px 1px 0px 0px #ffffff;
box-shadow:inset 0px 1px 0px 0px #ffffff;
background:-webkit-gradient( linear, left top, left bottom, color-stop(0.05, #ffffff), color-stop(1, #d1d1d1) );
background:-moz-linear-gradient( center top, #ffffff 5%, #d1d1d1 100% );
filter:progid:DXImageTransform.Microsoft.gradient(startColorstr='#ffffff', endColorstr='#d1d1d1');
background-color:#ffffff;
-moz-border-radius:6px;
-webkit-border-radius:6px;
border-radius:6px;
border:1px solid #dcdcdc;
display:inline-block;
color:#777777;
font-family:arial;
font-size:15px;
font-weight:bold;
padding:6px 24px;
text-decoration:none;
text-shadow:1px 1px 0px #ffffff;
}
.graybtn:hover {
background:-webkit-gradient( linear, left top, left bottom, color-stop(0.05, #d1d1d1), color-stop(1, #ffffff) );
background:-moz-linear-gradient( center top, #d1d1d1 5%, #ffffff 100% );
filter:progid:DXImageTransform.Microsoft.gradient(startColorstr='#d1d1d1', endColorstr='#ffffff');
background-color:#d1d1d1;
}
.graybtn:active {
position:relative;
top:1px;
}38、在可打印的網(wǎng)頁中顯示URLs
@media print {
a:after {
content: " [" attr(href) "] ";
}
}39、CSS3 圓點(diǎn)圖案
body {
background: radial-gradient(circle, white 10%, transparent 10%),
radial-gradient(circle, white 10%, black 10%) 50px 50px;
background-size: 100px 100px;
}40、CSS font屬性縮寫
p {
font: italic small-caps bold 1.2em/1.0em Arial, Tahoma, Helvetica;
}41、論文頁面的卷曲效果
ul.box {
position: relative;
z-index: 1; /* prevent shadows falling behind containers with backgrounds */
overflow: hidden;
list-style: none;
margin: 0;
padding: 0;
}
ul.box li {
position: relative;
float: left;
width: 250px;
height: 150px;
padding: 0;
border: 1px solid #efefef;
margin: 0 30px 30px 0;
background: #fff;
-webkit-box-shadow: 0 1px 4px rgba(0, 0, 0, 0.27), 0 0 40px rgba(0, 0, 0, 0.06) inset;
-moz-box-shadow: 0 1px 4px rgba(0, 0, 0, 0.27), 0 0 40px rgba(0, 0, 0, 0.06) inset;
box-shadow: 0 1px 4px rgba(0, 0, 0, 0.27), 0 0 40px rgba(0, 0, 0, 0.06) inset;
}
ul.box li:before,
ul.box li:after {
content: '';
z-index: -1;
position: absolute;
left: 10px;
bottom: 10px;
width: 70%;
max-width: 300px; /* avoid rotation causing ugly appearance at large container widths */
max-height: 100px;
height: 55%;
-webkit-box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3);
-moz-box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3);
box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3);
-webkit-transform: skew(-15deg) rotate(-6deg);
-moz-transform: skew(-15deg) rotate(-6deg);
-ms-transform: skew(-15deg) rotate(-6deg);
-o-transform: skew(-15deg) rotate(-6deg);
transform: skew(-15deg) rotate(-6deg);
}
ul.box li:after {
left: auto;
right: 10px;
-webkit-transform: skew(15deg) rotate(6deg);
-moz-transform: skew(15deg) rotate(6deg);
-ms-transform: skew(15deg) rotate(6deg);
-o-transform: skew(15deg) rotate(6deg);
transform: skew(15deg) rotate(6deg);
}42、鮮艷的錨鏈接
a {
color: #00e;
}
a:visited {
color: #551a8b;
}
a:hover {
color: #06e;
}
a:focus {
outline: thin dotted;
}
a:hover, a:active {
outline: 0;
}
a, a:visited, a:active {
text-decoration: none;
color: #fff;
-webkit-transition: all .3s ease-in-out;
}
a:hover, .glow {
color: #ff0;
text-shadow: 0 0 10px #ff0;
}以上就是42個(gè)CSS常用技巧的詳細(xì)內(nèi)容，更多請(qǐng)關(guān)注億速云其它相關(guān)文章！
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