站長(zhǎng)資訊網(wǎng)本篇文章給大家分享12個(gè)有趣且實(shí)用的 CSS 小技巧，讓前端開發(fā)更輕松，快來(lái)收藏吧，希望對(duì)大家有所幫助！
（推薦學(xué)習(xí)：css視頻教程）
1. 打字效果
代碼實(shí)現(xiàn)：
<div class="wrapper"> <div class="typing-demo"> 有趣且實(shí)用的 CSS 小技巧 </div> </div>
.wrapper { height: 100vh; display: flex; align-items: center; justify-content: center; } .typing-demo { width: 22ch; animation: typing 2s steps(22), blink .5s step-end infinite alternate; white-space: nowrap; overflow: hidden; border-right: 3px solid; font-family: monospace; font-size: 2em; } @keyframes typing { from { width: 0 } } @keyframes blink { 50% { border-color: transparent } }
實(shí)現(xiàn)效果：
2. 設(shè)置陰影
當(dāng)使用透明圖像時(shí)，可以使用 drop-shadow() 函數(shù)在圖像上創(chuàng)建陰影，而不是使用 box shadow 屬性在元素的整個(gè)框后面創(chuàng)建矩形陰影：
<div class="wrapper"> <div class="mr-2"> <div class="mb-1 text-center"> box-shadow </div> <img class="box-shadow" src="https://markodenic.com/man_working.png" alt="Image with box-shadow"> </div> <div> <div class="mb-1 text-center"> drop-shadow </div> <img class="drop-shadow" src="https://markodenic.com/man_working.png" alt="Image with drop-shadow"> </div> </div>
.wrapper { height: 100vh; display: flex; align-items: center; justify-content: center; } .mr-2 { margin-right: 2em; } .mb-1 { margin-bottom: 1em; } .text-center { text-align: center; } .box-shadow { box-shadow: 2px 4px 8px #585858; } .drop-shadow { filter: drop-shadow(2px 4px 8px #585858); }
對(duì)比效果：
3. 平滑滾動(dòng)
無(wú)需 JavaScript 即可實(shí)現(xiàn)平滑滾動(dòng)，只需一行 CSS：scroll-behavior: smooth；
<nav> Scroll to: <a href="#sectionA" class="link bg-red">A</a> <a href="#sectionB" class="link bg-blue">B</a> <a href="#sectionC" class="link bg-green">C</a> </nav> <div class="wrapper"> <div id="sectionA" class="section bg-red">A</div> <div id="sectionB" class="section bg-blue">B</div> <div id="sectionC" class="section bg-green">C</div> </div>
html { scroll-behavior: smooth; } nav { position: fixed; left: calc(50vw - 115px); top: 0; width: 200px; text-align: center; padding: 15px; background: #fff; box-shadow: 0 2px 5px 1px rgba(0, 0, 0, 0.2); } nav .link { padding: 5px; color: white; } .section { height: 100vh; display: flex; align-items: center; justify-content: center; color: #fff; font-size: 5em; text-shadow: 0px 2px 0px #b2a98f, 0px 4px 3px rgba(0,0,0,0.15), 0px 8px 1px rgba(0,0,0,0.1); } .bg-red { background: #de5448; } .bg-blue { background: #4267b2; } .bg-green { background: #4CAF50; }
實(shí)現(xiàn)效果：
4. 自定義光標(biāo)
我們可以使用自定義圖像，甚至表情符號(hào)來(lái)作為光標(biāo)。
<div class="wrapper"> <div class="tile"> Default </div> <div class="tile tile-image-cursor"> Image </div> <div class="tile tile-emoji-cursor"> Emoji </div> </div>
.wrapper { display: flex; height: 100vh; align-items: center; justify-content: center; background: #4776e6; background: linear-gradient(to right, #4776e6, #8e54e9); padding: 0 10px; } .tile { width: 200px; height: 200px;display: flex; align-items: center; justify-content: center; background-color: #de5448; margin-right: 10px;color: #fff; font-size: 1.4em; text-align: center; } .tile-image-cursor { background-color: #1da1f2; cursor: url(https://picsum.photos/20/20), auto; } .tile-emoji-cursor { background-color: #4267b2; cursor: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='40' height='48' viewport='0 0 100 100' style='fill:black;font-size:24px;'><text y='50%'>?</text></svg>"), auto; }
實(shí)現(xiàn)效果：
5. 截?cái)辔谋?/h2>
一行文本溢出隱藏：
<div> 白日依山盡，黃河入海流。欲窮千里目，更上一層樓。 </div>
div { width: 200px; background-color: #fff; padding: 15px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
實(shí)現(xiàn)效果：
還可以使用“-webkit-line-clamp”屬性將文本截?cái)酁樘囟ǖ男袛?shù)。文本將在截?cái)嗟牡胤綍?huì)顯示省略號(hào)：
div { width: 200px; display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: 2; overflow: hidden; }
實(shí)現(xiàn)效果：
6. 自定義選中樣式
CSS 偽元素::selection，可以用來(lái)自定義用戶選中文檔的高亮樣式。
<div class="wrapper"> <div> <p> 默認(rèn)高亮 </p> <p class="custom-highlighting"> 自定義高亮 </p> </div> </div>
.wrapper { height: 100vh; display: flex; align-items: center; justify-content: center; } p { font-size: 2rem; font-family: sans-serif; } .custom-highlighting::selection { background-color: #8e44ad; color: #fff; }
實(shí)現(xiàn)效果：
7. CSS 模態(tài)框
我們可以使用 CSS 中的 :target 偽元素來(lái)創(chuàng)建一個(gè)模態(tài)框。
<div class="wrapper"> <a href="#demo-modal">Open Modal</a> </div> <div id="demo-modal" class="modal"> <div class="modal__content"> <h1>CSS Modal</h1> <p>hello world</p> <a href="#" class="modal__close">×</a> </div> </div>
.wrapper { height: 100vh; display: flex; align-items: center; justify-content: center; background: linear-gradient(to right, #834d9b, #d04ed6); } .wrapper a { display: inline-block; text-decoration: none; padding: 15px; background-color: #fff; border-radius: 3px; text-transform: uppercase; color: #585858; font-family: 'Roboto', sans-serif; } .modal { visibility: hidden; opacity: 0; position: absolute; top: 0; right: 0; bottom: 0; left: 0; display: flex; align-items: center; justify-content: center; background: rgba(77, 77, 77, .7); transition: all .4s; } .modal:target { visibility: visible; opacity: 1; } .modal__content { border-radius: 4px; position: relative; width: 500px; max-width: 90%; background: #fff; padding: 1em 2em; } .modal__close { position: absolute; top: 10px; right: 10px; color: #585858; text-decoration: none; }
實(shí)現(xiàn)效果：
8. 空元素樣式
可以使用 :empty 選擇器來(lái)設(shè)置完全沒有子元素或文本的元素的樣式：
<div class="wrapper"> <div class="box"></div> <div class="box">白日依山盡，黃河入海流。欲窮千里目，更上一層樓。</div> </div>
.wrapper { height: 100vh; display: flex; justify-content: center; align-items: center; } .box { display: inline-block; background: #999; border: 1px solid #585858; height: 200px; width: 200px; margin-right: 15px; } .box:empty { background: #fff; }
實(shí)現(xiàn)效果：
9. 創(chuàng)建自定義滾動(dòng)條
<div class="wrapper"> <div> <div class="tile mr-1"> <div class="tile-content"> 默認(rèn)滾動(dòng)條 </div> </div> <div class="tile tile-custom-scrollbar"> <div class="tile-content"> 自定義滾動(dòng)條 </div> </div> </div> </div>
.wrapper { height: 100vh; display: flex; align-items: center; justify-content: center; } .mr-1 { margin-right: 1em; } .tile { overflow: auto; display: inline-block; background-color: #ccc; height: 200px; width: 180px; } .tile-custom-scrollbar::-webkit-scrollbar { width: 12px; background-color: #eff1f5; } .tile-custom-scrollbar::-webkit-scrollbar-track{ border-radius: 3px; background-color: transparent; } .tile-custom-scrollbar::-webkit-scrollbar-thumb{ border-radius:5px; background-color:#515769; border:2px solid #eff1f5 } .tile-content { padding: 20px; height: 500px; }
實(shí)現(xiàn)效果：
10. 動(dòng)態(tài)工具提示
可以使用 CSS 函數(shù) attr() 來(lái)創(chuàng)建動(dòng)態(tài)的純 CSS 工具提示 。
<h1> HTML/CSS tooltip </h1> <p> Hover <span class="tooltip" data-tooltip="Tooltip Content">Here</span> to see the tooltip. </p> <p> You can also hover <span class="tooltip" data-tooltip="This is another Tooltip Content">here</span> to see another example. </p>
.tooltip { position: relative; border-bottom: 1px dotted black; } .tooltip:before { content: attr(data-tooltip); position: absolute; width: 100px; background-color: #062B45; color: #fff; text-align: center; padding: 10px; line-height: 1.2; border-radius: 6px; z-index: 1; opacity: 0; transition: opacity .6s; bottom: 125%; left: 50%; margin-left: -60px; font-size: 0.75em; visibility: hidden; } .tooltip:after { content: ""; position: absolute; bottom: 75%; left: 50%; margin-left: -5px; border-width: 5px; border-style: solid; opacity: 0; transition: opacity .6s; border-color: #062B45 transparent transparent transparent; visibility: hidden; } .tooltip:hover:before, .tooltip:hover:after { opacity: 1; visibility: visible; }
實(shí)現(xiàn)效果：
11. 圓形漸變邊框
<div class="box gradient-border"> 炫酷漸變邊框 </div>
.gradient-border { border: solid 5px transparent; border-radius: 10px; background-image: linear-gradient(white, white), linear-gradient(315deg,#833ab4,#fd1d1d 50%,#fcb045); background-origin: border-box; background-clip: content-box, border-box; } .box { width: 350px; height: 100px; display: flex; align-items: center; justify-content: center; margin: 100px auto; }
實(shí)現(xiàn)效果：
12. 灰度圖片
可以使用 grayscale() 過濾器功能將輸入圖像轉(zhuǎn)換為灰度。
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