借助 CSS 中的角度设置线性渐变的方向
要更好地控制渐变的方向,请在 background-image 属性的 linear-gradient() 方法下定义角度。这赋予了对渐变方向更大的控制权−
值 0 度为“到顶部”方向
值 90 度为“到右侧”方向
值 180 度为“到底部”方向
语法如下−
background-image: linear-gradient(angle, color-stop1, color-stop2);
设置线性渐变的角度
以下代码用于使用 CSS 中的角度设置线性渐变的方向。
.linearGradient { background-image: linear-gradient(90deg, rgb(255, 0, 200), yellow); } .linearGradient1 { background-image: linear-gradient(-90deg, rgb(255, 0, 200), yellow); }
示例
示例如下−
<!DOCTYPE html> <html> <head> <style> body { font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif; } div { height: 200px; width: 300px; display: inline-block; margin-right: 10px; } .linearGradient { background-image: linear-gradient(90deg, rgb(255, 0, 200), yellow); } .linearGradient1 { background-image: linear-gradient(-90deg, rgb(255, 0, 200), yellow); } </style> </head> <body> <h1>Linear Gradient direction using angles</h1> <div class="linearGradient"></div> <div class="linearGradient1"></div> </body> </html>
使用颜色过渡点设置线性渐变的角度
首先设置线性渐变的角度,然后是颜色过渡点−
Spain:lang(es){ background-image: linear-gradient(red 25%, yellow 25%, yellow 75%, red 75%); } .Italy:lang(it){ background-image:linear-gradient(90deg, #00ae00 33.3%, white 33.3%, white 66.6%, red 66.6%); } .Germany:lang(nl){ background-image:linear-gradient(90deg, black 33.3%, yellow 33.3%, yellow 66.6%, red 66.6%); }
示例
示例如下−
<!DOCTYPE html> <html> <head> <style> div { margin: 10px; padding: 10px; text-align: center; border: 1px solid black; } .Italy:lang(it)::after { padding: 20px; content: '~ Italy'; font-style: italic; } .Spain:lang(es)::after { padding: 8px; content: '~ Spain'; font-style: italic; } .Germany:lang(nl)::after { padding: 20px; content: '~ Belgium'; font-style: italic; } .Spain:lang(es){ background-image: linear-gradient(red 25%, yellow 25%, yellow 75%, red 75%); } .Italy:lang(it){ background-image:linear-gradient(90deg, #00ae00 33.3%, white 33.3%, white 66.6%, red 66.6%); } .Germany:lang(nl){ background-image:linear-gradient(90deg, black 33.3%, yellow 33.3%, yellow 66.6%, red 66.6%); } </style> </head> <body> <div class="Italy" lang='it'>Rome</div> <div class="Germany" lang='nl'>Brussels</div> <div class="Spain" lang='es'>Madrid</div> </body> </html>
为背景图像设置线性渐变
使用值 linear-gradient() 设置了线性渐变,而使用 url() 设置了图像−
background-image: linear-gradient( rgba(185, 255, 243, 0.5), rgba(31, 12, 117, 0.5) ), url("https://tutorialspoint.com/assets/profiles/123055/profile/200_187394-1565938756.jpg");
示例
让我们来看一个示例−
<!DOCTYPE html> <html> <head> <style> body, html { height: 100%; margin: 0; font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif; } *, *::before, *::after { box-sizing: border-box; } h1 { font-size: 60px; font-weight: bolder; } .heroContainer { background-image: linear-gradient( rgba(185, 255, 243, 0.5), rgba(31, 12, 117, 0.5) ), url("https://tutorialspoint.com/assets/profiles/123055/profile/200_187394-1565938756.jpg"); height: 50%; background-position: center; background-repeat: no-repeat; background-size: cover; position: relative; } .heroCaption { text-align: center; position: absolute; top: 20%; left: 45%; color: white; } .heroCaption button { border: none; outline: none; display: inline-block; padding: 20px; color: rgb(255, 255, 255); opacity: 0.8; font-size: 20px; background-color: rgb(47, 151, 21); text-align: center; cursor: pointer; } .heroCaption button:hover { opacity: 1; } </style> </head> <body> <div class="heroContainer"> <div class="heroCaption"> <h1>I am Amit</h1> <h2>And I'm an Entrepreneur</h2> <button>Contact Me</button> </div> </div> </body> </html>
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