渐变-线性渐变和径向渐变
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线性渐变
语法:background: linear-gradient(direction, color-stop1, color-stop2, ...);
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>渐变</title> <style> /*从上到下*/ #grad1 { height: 200px; background: -webkit-linear-gradient(#000, #888); /* Safari 5.1 - 6.0 */ background: -o-linear-gradient(#000, #888); /* Opera 11.1 - 12.0 */ background: -moz-linear-gradient(#000, #888); /* Firefox 3.6 - 15 */ background: linear-gradient(#000, #888); /* 标准的语法(必须放在最后) */ } /*从左到右*/ #grad2 { height: 200px; background: -webkit-linear-gradient(left, red , blue); /* Safari 5.1 - 6.0 */ background: -o-linear-gradient(right, red, blue); /* Opera 11.1 - 12.0 */ background: -moz-linear-gradient(right, red, blue); /* Firefox 3.6 - 15 */ background: linear-gradient(to right, red , blue); /* 标准的语法(必须放在最后) */ } /*从左上到右下*/ #grad3 { height: 200px; background: -webkit-linear-gradient(left top, #000 , #888); /* Safari 5.1 - 6.0 */ background: -o-linear-gradient(bottom right, #000, #888); /* Opera 11.1 - 12.0 */ background: -moz-linear-gradient(bottom right, #000, #888); /* Firefox 3.6 - 15 */ background: linear-gradient(to bottom right, #000 , #888); /* 标准的语法(必须放在最后) */ } /*彩虹渐变*/ #grad4 { height: 55px; background: -webkit-linear-gradient(left, red, orange, yellow, green, blue, indigo, violet); /* Safari 5.1 - 6.0 */ background: -o-linear-gradient(left, red, orange, yellow, green, blue, indigo, violet); /* Opera 11.1 - 12.0 */ background: -moz-linear-gradient(left, red, orange, yellow, green, blue, indigo, violet); /* Firefox 3.6 - 15 */ background: linear-gradient(to right, red, orange, yellow, green, blue, indigo, violet); /* 标准的语法(必须放在最后) */ } #grad5 { height: 200px; background: -webkit-linear-gradient(left, rgba(255,0,0,0), rgba(255,0,0,1)); /* Safari 5.1 - 6.0 */ background: -o-linear-gradient(right, rgba(255,0,0,0), rgba(255,0,0,1)); /* Opera 11.1 - 12.0 */ background: -moz-linear-gradient(right, rgba(255,0,0,0), rgba(255,0,0,1)); /* Firefox 3.6 - 15 */ background: linear-gradient(to right, rgba(255,0,0,0), rgba(255,0,0,1)); /* 标准的语法(必须放在最后) */ } /*径向渐变*/ /*均匀分布*/ #grad6 { height: 150px; width: 200px; background: -webkit-radial-gradient(red, green, blue); /* Safari 5.1 - 6.0 */ background: -o-radial-gradient(red, green, blue); /* Opera 11.6 - 12.0 */ background: -moz-radial-gradient(red, green, blue); /* Firefox 3.6 - 15 */ background: radial-gradient(red, green, blue); /* 标准的语法(必须放在最后) */ } /*不均匀分布*/ #grad7 { height: 150px; width: 200px; background: -webkit-radial-gradient(red 5%, green 15%, blue 60%); /* Safari 5.1 - 6.0 */ background: -o-radial-gradient(red 5%, green 15%, blue 60%); /* Opera 11.6 - 12.0 */ background: -moz-radial-gradient(red 5%, green 15%, blue 60%); /* Firefox 3.6 - 15 */ background: radial-gradient(red 5%, green 15%, blue 60%); /* 标准的语法(必须放在最后) */ } /*椭圆形 默认*/ #grad8 { height: 150px; width: 200px; background: -webkit-radial-gradient(red, yellow, green); /* Safari 5.1 - 6.0 */ background: -o-radial-gradient(red, yellow, green); /* Opera 11.6 - 12.0 */ background: -moz-radial-gradient(red, yellow, green); /* Firefox 3.6 - 15 */ background: radial-gradient(red, yellow, green); /* 标准的语法(必须放在最后) */ } /*圆形*/ #grad9 { height: 150px; width: 200px; background: -webkit-radial-gradient(circle, red, yellow, green); /* Safari 5.1 - 6.0 */ background: -o-radial-gradient(circle, red, yellow, green); /* Opera 11.6 - 12.0 */ background: -moz-radial-gradient(circle, red, yellow, green); /* Firefox 3.6 - 15 */ background: radial-gradient(circle, red, yellow, green); /* 标准的语法(必须放在最后) */ } /*重复*/ #grad10 { height: 150px; width: 200px; background: -moz-repeating-radial-gradient(#ace, #ace 5px, #f96 5px, #f96 10px); background: -webkit-repeating-radial-gradient(#ace, #ace 5px, #f96 5px, #f96 10px); background: -moz-repeating-linear-gradient(top left -45deg, #ace, #ace 5px, #f96 5px, #f96 10px); background: -webkit-repeating-linear-gradient(top left -45deg, #ace, #ace 5px, #f96 5px, #f96 10px); } .flex-box{ display: flex; } .flex-item{ margin-left: 30px; } </style> </head> <body> <h3>线性渐变 - 从上到右</h3> <div id="grad1"></div> <h3>线性渐变 - 从左到右</h3> <div id="grad2"></div> <h3>线性渐变 - 从左上到右下</h3> <div id="grad3"></div> <h3>彩虹渐变</h3> <div id="grad4" style="text-align:center;margin:auto;color:#999;font-size:40px;font-weight:bold">渐变背景</div> <h3>线性渐变 - 透明度</h3> <p>为了添加透明度,我们使用 rgba() 函数来定义颜色结点。rgba() 函数中的最后一个参数可以是从 0 到 1 的值,它定义了颜色的透明度:0 表示完全透明,1 表示完全不透明。</p> <div id="grad5"></div> <h1 style="text-align:center;margin:auto;color:#333;font-weight:bold">径向渐变</h1> <div class="flex-box"> <div class="flex-item"> <h3>径向渐变 - 颜色结点均匀分布</h3> <div id="grad6"></div> </div> <div class="flex-item"> <h3>径向渐变 - 颜色结点不均匀分布</h3> <div id="grad7"></div> </div> <div class="flex-item"> <p><strong>椭圆形 Ellipse(默认):</strong></p> <div id="grad8"></div> </div> <div class="flex-item"> <p><strong>圆形 Circle:</strong></p> <div id="grad9"></div> </div> <div class="flex-item"> <p><strong>重复:</strong></p> <div id="grad10"></div> </div> </div> <p><strong>注意:</strong> Internet Explorer 9 及之前的版本不支持渐变。</p> </body> </html>
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