本文将告诉你如何使用SVG、CSS来实现Html网页上的元素加载动画。
1.使用Html的SVG,CSS来实现元素加载动画示例
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这个HTML文件的名字是svg_element_loading_animation_example.html。
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下面是该html文件的源代码
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>Use SVG, CSS To Impelment Element Loading Example</title> <style> /* define the svg box css style.*/ .box { height: 200px; width: 200px; background: white; } /* define the svg box and circle css style.*/ .box .circle { stroke-width: 2; stroke: #409eff; stroke-linecap: round; } /* rotate animation */ @keyframes rotate { to { transform: rotate(1turn) } } /* arc animation */ /* 125 is the circumference of the circle */ @keyframes circle { 0% { /* state 1: point */ stroke-dasharray: 1 125; stroke-dashoffset: 0; } 50% { /* state 2: circle */ stroke-dasharray: 120, 125; stroke-dashoffset: 0; } to { /* state 3: point(shrink in the direction of rotation) */ stroke-dasharray: 120 125; stroke-dashoffset: -125px; } } /* define the css box class animation */ .box { /* ...rotate animation */ animation: rotate 2s linear infinite; } /* define the css circle class animation */ .circle { /* ...circle animation */ animation: circle 2s infinite; } </style> </head> <body> <!-- Use svg tag to define a box area. --> <svg viewBox="25 25 50 50" class="box"> <!-- draw a svg circle --> <circle cx="50" cy="50" r="20" fill="none" class="circle"></circle> </svg> </body> </html>