This time I will bring you a summary of commonly used color gradient methods, and what are the precautions for color gradient methods? The following is a practical case, let’s take a look.
1. Linear gradient: linear-gradient
## Grammar: gradient> = linear-gradient([ [
to left: Set the gradient from right to left. Equivalent to: 270deg
to right: Set the gradient from left to right. Equivalent to: 90deg
to top: Set the gradient from bottom to top. Equivalent to: 0deg
to bottom: Set the gradient from top to bottom. Equivalent to: 180deg. This is the default value, which is equivalent to leaving it blank.
# & lt; length & gt ;: Specify the startup position with length value. The negative value is not allowed
# & lt; percentage & gt;: Specify the start and end color position with a percentage.
Example:##
p {
width: 200px;
height: 100px;
margin: 10px 5px;
border: 1px solid #ddd000;
}
#LinearStartToEnd {
float:left;
background: linear-gradient(#ff0000, #00ff00);
}
#LinearPercentage {
float:left;
background: linear-gradient(#0000ff, #ff0000 52%, #00ff00);
}
#LinearAnglePercentage {
float:left;
background: linear-gradient(90deg, #ff0000 20%, #00ff00 50%, #000000 80%);
}
#LinearAngle {
float:left;
background: linear-gradient(30deg, #ffff00 30%, #ff0000, #00ff00);
}
#LinearTopRight {
float:left;
background: linear-gradient(to right top, #00ff00, #ff0000 50%, #0000ff);
}
Grammar:
<position
> = [ ;
;
Use the length value Specify the abscissa value of the center of the radial gradient circle. Can be negative.
# & lt; Percentage & GT; ①: Specify the horizontal coordinate value of the radial gradient center with percentage. Can be negative.
# & lt; length & gt; ②: Specify the vertical coordinate value of the radial gradient and round heart with a length value. Can be negative.
# & lt; Percentage & gt; ②: Specify the vertical margin value of the radial gradient center with percentage. Can be negative.
center①：设置中间为径向渐变圆心的横坐标值。
center②：设置中间为径向渐变圆心的纵坐标值。
left：设置左边为径向渐变圆心的横坐标值。
right：设置右边为径向渐变圆心的横坐标值。
top：设置顶部为径向渐变圆心的纵坐标值。
bottom：设置底部为径向渐变圆心的纵坐标值。
circle：指定圆形的径向渐变
ellipse：指定椭圆形的径向渐变。
closest-side：指定径向渐变的半径长度为从圆心到离圆心最近的边。
closest-corner：指定径向渐变的半径长度为从圆心到离圆心最近的角。
farthest-side：指定径向渐变的半径长度为从圆心到离圆心最远的边。
farthest-corner：指定径向渐变的半径长度为从圆心到离圆心最远的角。
示例：
#RadialCenterCircle {
float:left;
background: radial-gradient(circle at center, #ff0000, #ffff00, #00ffff);
}
#RadialClosestSide {
float:left;
background: radial-gradient(circle closest-side, #ff0000, #00ff00, #ffff00);
}
#RadialFarthestSide {
float:left;
background: radial-gradient(farthest-side, #ff0000 20%, #ffff00 60%, #00ff00 80%);
}
#RadialRightTop {
float:left;
background: radial-gradient(at right top, #ff0000, #ffff00, #00ff00);
}
#RadialRadiusCenter {
float:left;
background: radial-gradient(farthest-side at top right, #ff0000, #ffff00, #01fefe);
}
#RadialGroup {
float:left;
background:
radial-gradient(farthest-side at top right, #ff0000, #ffff00, #009f00, transparent),
radial-gradient(60px at top left, #ff0000, #ffff00, #00ff0e);
}三、重复的线性渐变：repeating-linear-gradient
语法和参数类似线性渐变，这里不在赘述。详情请参考CSS手册。
示例：
#RepeatingLinearPercentage{
float:left;
background: repeating-linear-gradient(#ff0000, #00ff00 10%, #000000 15%);
}
#RepeatingLinearRight {
float:left;
background: repeating-linear-gradient(to right, #ff0000, #00ff00 10%, #000000 15%);
}
#RepeatingLinearAngle {
float:left;
background: repeating-linear-gradient(45deg, #ff0000, #00ff00 10%, #0000ff 15%);
}
#RepeatingLinearBottomLeft {
float:left;
background: repeating-linear-gradient(to bottom left, #00ffff, #ff0000 10%, #00ff00 15%);
}四、重复的径向渐变：repeating-radial-gradient
语法和参数类似径向渐变，这里不在赘述。详情请参考CSS手册。
示例：
#RepeatingRadialCircle {
float:left;
background: repeating-radial-gradient(circle, #ff0000 0, #00ff00 10%, #0000ff 15%);
}
#RepeatingRadialTopLeft {
float:left;
background: repeating-radial-gradient(at top left, #ff0000, #00ff00 10%, #0de0f0 15%, #ffff00 20%, #000000 25%);
}
#RepeatingRadialClosestCorner {
float:left;
background: repeating-radial-gradient(circle closest-corner at 20px 50px, #00ff00, #ff0000 10%, #00ffff 20%, #ffff00 30%, #ff00ff 40%);
}完整的例子：
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>ImageCSS3</title>
<style>
p {
width: 200px;
height: 100px;
margin: 10px 5px;
border: 1px solid #ddd000;
}
#LinearStartToEnd {
float:left;
background: linear-gradient(#ff0000, #00ff00);
}
#LinearPercentage {
float:left;
background: linear-gradient(#0000ff, #ff0000 52%, #00ff00);
}
#LinearAnglePercentage {
float:left;
background: linear-gradient(90deg, #ff0000 20%, #00ff00 50%, #000000 80%);
}
#LinearAngle {
float:left;
background: linear-gradient(30deg, #ffff00 30%, #ff0000, #00ff00);
}
#LinearTopRight {
float:left;
background: linear-gradient(to right top, #00ff00, #ff0000 50%, #0000ff);
}
#RadialCenterCircle {
float:left;
background: radial-gradient(circle at center, #ff0000, #ffff00, #00ffff);
}
#RadialClosestSide {
float:left;
background: radial-gradient(circle closest-side, #ff0000, #00ff00, #ffff00);
}
#RadialFarthestSide {
float:left;
background: radial-gradient(farthest-side, #ff0000 20%, #ffff00 60%, #00ff00 80%);
}
#RadialRightTop {
float:left;
background: radial-gradient(at right top, #ff0000, #ffff00, #00ff00);
}
#RadialRadiusCenter {
float:left;
background: radial-gradient(farthest-side at top right, #ff0000, #ffff00, #01fefe);
}
#RadialGroup {
float:left;
background:
radial-gradient(farthest-side at top right, #ff0000, #ffff00, #009f00, transparent),
radial-gradient(60px at top left, #ff0000, #ffff00, #00ff0e);
}
#RepeatingLinearPercentage{
float:left;
background: repeating-linear-gradient(#ff0000, #00ff00 10%, #000000 15%);
}
#RepeatingLinearRight {
float:left;
background: repeating-linear-gradient(to right, #ff0000, #00ff00 10%, #000000 15%);
}
#RepeatingLinearAngle {
float:left;
background: repeating-linear-gradient(45deg, #ff0000, #00ff00 10%, #0000ff 15%);
}
#RepeatingLinearBottomLeft {
float:left;
background: repeating-linear-gradient(to bottom left, #00ffff, #ff0000 10%, #00ff00 15%);
}
#RepeatingRadialCircle {
float:left;
background: repeating-radial-gradient(circle, #ff0000 0, #00ff00 10%, #0000ff 15%);
}
#RepeatingRadialTopLeft {
float:left;
background: repeating-radial-gradient(at top left, #ff0000, #00ff00 10%, #0de0f0 15%, #ffff00 20%, #000000 25%);
}
#RepeatingRadialClosestCorner {
float:left;
background: repeating-radial-gradient(circle closest-corner at 20px 50px, #00ff00, #ff0000 10%, #00ffff 20%, #ffff00 30%, #ff00ff 40%);
}
</style>
</head>
<body>
<!-- 指定线性渐变起止色 -->
<p id="LinearStartToEnd"></p>
<!-- 指定线性渐变起止色位置 -->
<p id="LinearPercentage"></p>
<!-- 指定线性渐变颜色渐变方向和起止色位置 -->
<p id="LinearAnglePercentage"></p>
<!-- 指定线性渐变颜色渐变方向 -->
<p id="LinearAngle"></p>
<!-- 设置渐变从右上到左下 -->
<p id="LinearTopRight"></p>
<!-- 浮动p换行，此处指定p宽高和边界，是为了覆盖前面定义的p统一CSS样式，
可以尝试去掉指定的p宽高和边界，看看效果 -->
<p style="width:0; height:0; border:none; clear:both"></p>
<!-- 以中心点为圆心的圆形径向渐变 -->
<p id="RadialCenterCircle"></p>
<!-- 径向渐变半径长度：圆心到离圆心最近边的长度 -->
<p id="RadialClosestSide"></p>
<!-- 径向渐变半径长度：圆心到离圆心最远边的长度 -->
<p id="RadialFarthestSide"></p>
<!-- 左边为径向渐变圆心的横坐标值,顶边为径向渐变圆心的纵坐标值 -->
<p id="RadialRightTop"></p>
<!-- 同时指定径向渐变的圆心和半径 -->
<p id="RadialRadiusCenter"></p>
<!-- 径向渐变组合 -->
<p id="RadialGroup"></p>
<p style="width:0; height:0; border:none; clear:both"></p>
<!-- 指定颜色起止色位置的重复线性渐变 -->
<p id="RepeatingLinearPercentage"></p>
<!-- 从左到右渐变的重复线性渐变 -->
<p id="RepeatingLinearRight"></p>
<!-- 渐变角度为45度的重复线性渐变 -->
<p id="RepeatingLinearAngle"></p>
<!-- 从左下到右上的重复线性渐变 -->
<p id="RepeatingLinearBottomLeft"></p>
<p style="width:0; height:0; border:none; clear:both"></p>
<!-- 圆形重复径向渐变 -->
<p id="RepeatingRadialCircle"></p>
<!-- 渐变方向为左上到右下的重复径向渐变 -->
<p id="RepeatingRadialTopLeft"></p>
<!-- 重复径向渐变：渐变半径长度为从圆心到离圆心最近的角的距离 -->
<p id="RepeatingRadialClosestCorner"></p>
</body>
</html>
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