.car 元素,它的2 個子元素分別代表車身和車輪:
<figure> <div> <span></span> <span></span> </div> </figure>居中顯示:
body { margin: 0; height: 100vh; display: flex; align-items: center; justify-content: center; background-color: #333; }定義容器尺寸和車的顏色:
.loader { width: 11.7em; height: 4.2em; color: lightcyan; position: relative; }畫出底盤:
.car { position: absolute; width: inherit; height: 2em; background-color: currentColor; top: 1.5em; border-radius: 0 5em 1em 0 / 0 4em 1em 0; }畫出尾冀:
.car::before { content: ''; position: absolute; width: 0; height: 0; border: 0.6em solid transparent; border-left-width: 0; border-right-color: currentColor; transform-origin: left; transform: rotate(-45deg); top: -0.5em; }(這時看起來有點兒像飛機,哈哈~~)#畫出車身:
.body { position: absolute; width: 7.5em; height: 3.5em; box-sizing: border-box; border: 0.4em solid; border-radius: 3em 4.5em 0 0 / 3em 4em 0 0; top: -1.5em; left: 1.2em; }用偽元素畫出車窗:
.body::before { content: ''; position: absolute; width: 3.5em; height: inherit; background-color: currentColor; border-top-left-radius: inherit; left: -0.4em; top: -0.4em; }畫出車輪的輪廓:
.wheels::before, .wheels::after { content: ''; position: absolute; box-sizing: border-box; width: 2.6em; height: 2.6em; background-color: #333; border-radius: 50%; bottom: -1em; }畫出輪轂:
.wheels::before, .wheels::after { border: 0.3em solid #333; background-image: linear-gradient( 135deg, transparent 45%, currentColor 46%, currentColor 54%, transparent 55% ), linear-gradient( 90deg, transparent 45%, currentColor 46%, currentColor 54%, transparent 55% ), linear-gradient( 45deg, transparent 45%, currentColor 46%, currentColor 54%, transparent 55% ), linear-gradient( 0deg, transparent 45%, currentColor 46%, currentColor 54%, transparent 55% ), radial-gradient( currentColor 29%, transparent 30%, transparent 50%, currentColor 51% ); }把車輪定位到左右兩側:
.wheels::before { left: 1.2em; } .wheels::after { right: 0.8em; }接下來製作動畫效果。 增加表示風影的dom 元素
.strikes,它包含5 個子元素:
<figure> <p> <span></span> <span></span> </p> <p> <span></span> <span></span> <span></span> <span></span> <span></span> </p> </figure>畫出5 段短細線:
.strikes { position: absolute; width: 1em; height: inherit; border: 1px dashed white; display: flex; flex-direction: column; justify-content: space-between; } .strikes span { height: 0.1em; background-color: lightcyan; }增加風影飄逝的動畫效果,定義css 變量,設定動畫延時:
.strikes span { animation: drift 0.2s linear infinite; animation-delay: calc((var(--n) - 1) * 0.05s); } @keyframes drift { from { transform: translate(3.5em); } to { transform: translate(-8em); filter: opacity(0); } } .strikes span:nth-child(1) { --n: 1; } .strikes span:nth-child(2) { --n: 2; } .strikes span:nth-child(3) { --n: 3; } .strikes span:nth-child(4) { --n: 4; } .strikes span:nth-child(5) { --n: 5; }增加輪子轉動動畫效果:
.wheels::before, .wheels::after { animation: rotating 0.5s linear infinite; } @keyframes rotating { to { transform: rotate(1turn); } }增加車身顛簸的動畫效果:
.car { animation: run 0.25s linear infinite; } @keyframes run { 0% { transform: translate(0.2em, 0.1em) rotate(0deg); } 20% { transform: translate(0.1em, 0.2em) rotate(1deg); } 40% { transform: translate(0.1em, -0.1em) rotate(-1deg); } 60% { transform: translate(-0.1em, 0.2em) rotate(0deg); } 80% { transform: translate(-0.1em, 0.1em) rotate(1deg); } 100% { transform: translate(0.2em, 0.1em) rotate(-1deg); } }大功告成! 相關推薦: 如何使用CSS與混色模式實作loader動畫效果(附程式碼)
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