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法學研究藉助 CSS 中的角度設定線性漸變的方向
要更好地控制漸變的方向，請在 background-image 屬性的 linear-gradient() 方法下定義角度。這賦予了對漸變方向更大的控制權−
值 0 度為“到頂部”方向
值 90 度為“到右側”方向
值 180 度為“到底部”方向
語法如下−
background-image: linear-gradient(angle, color-stop1, color-stop2);
設定線性漸變的角度
以下程式碼用於使用 CSS 中的角度設定線性漸變的方向。
.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>
使用顏色過渡點設定線性漸變的角度
首先設定線性漸變的角度，然後是顏色過渡點−
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>
為背景影像設定線性漸變
使用值 linear-gradient() 設定了線性漸變，而使用 url() 設定了影像−
background-image: linear-gradient( rgba(185, 255, 243, 0.5), rgba(31, 12, 117, 0.5) ), url("https://tutorialspoint.tw/assets/profiles/123055/profile/200_187394-1565938756.jpg");
示例
讓我們來看一個示例−
<!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.tw/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>
更新於：27-12-2023
256 次瀏覽
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