我试图实现以下目标:
我尝试使用最少量的代码执行此操作。我想尽可能避免重复。我相信所有这一切都可以通过选择器之前和之后实现,但我不确定如何完成这项工作
这是我到目前为止所拥有的:
CSS:
.grid-container {
display: grid;
grid: 100px / 100px;
}
.circle {
border-radius: 50%;
width: 100%;
height: 100%;
background-color: #e4e4e7;
}
.circle:before {
content: "";
border-radius: 50%;
width: 80%;
height: 80%;
top: 10%;
left: 10%;
background-color: blue;
display: block;
position: relative;
}
.image-one:before {
content: url("https://stackoverflow.com/favicon.ico");
}
.circle-01 {
grid-column: 1 / 2;
grid-row: 1 / 2;
}
HTML:
<div class="grid-container">
<div class="circle-01 circle image-one"></div>
</div>
我需要一种结构,我可以轻松地改变内圈和/或图像的颜色
实施例
<div class="grid-container">
<div class="circle-01 circle image-one yellow"></div>
<div class="circle-01 circle image-two blue"></div>
<div class="circle-01 circle image-three green"></div>
</div>
答案 0 :(得分:2)
您可以使用这样的伪元素,将伪元素放在主元素的顶部并使用边框和背景图像。如果它没有填充整个伪元素,你甚至可以在图像后面使用背景颜色(注意no-repeat
,背景的大小和位置设置):
.x1 {
width: 300px;
height: 300px;
position: relative;
border-radius: 50%;
border: 10px solid #22f;
margin: 30px;
background: yellow;
}
.x1:after {
content: '';
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
width: 220px;
height: 220px;
border-radius: 50%;
border: 6px solid #f22;
background: #3d3 url(http://placehold.it/200x200/fa0/?text=this_is_an_image) center center no-repeat;
background-size: 100px 100px;
}
&#13;
<div class="x1"></div>
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注意:橙色正方形是图像,其周围的绿色是背景颜色,红色圆圈是伪元素的边框,黄色区域是主要元素的背景颜色,蓝色圆圈是主要元素的边界。这些中的每一个都可以是白色或透明的。
在评论中的其他问题之后添加:
您还可以通过添加单独的类来更改背景颜色。在下面的代码片段中,我向div
添加了两个类,一个影响主元素中的背景,另一个影响伪元素的背景颜色。在后一种情况下,您必须确保在CSS规则中使用background-color
属性,而不是background
- 否则背景图像将消失:
.x1 {
width: 300px;
height: 300px;
position: relative;
border-radius: 50%;
border: 10px solid #22f;
margin: 30px;
background: yellow;
}
.x1:after {
content: '';
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
width: 220px;
height: 220px;
border-radius: 50%;
border: 6px solid #f22;
background: #3d3 url(http://placehold.it/200x200/fa0/?text=this_is_an_image) center center no-repeat;
background-size: 100px 100px;
}
.aqua-outer-bg {
background: aqua;
}
.pink-inner-bg:after {
background-color: pink;
}
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<div class="x1 aqua-outer-bg pink-inner-bg"></div>
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注意:原始CSS规则保持不变,其背景颜色被其他类覆盖。
9月18日OP发表评论中的其他问题之后还有一个额外的补充:
是的,您也可以将其分为两个类,如下所示(.x1a
和.x1b
)。我只是将这两个类添加到HTML标记中,然后将CSS从x1:after
拆分为两个规则,一个用于.x1a:after
,另一个用于.x2a:after
.x1a {
width: 300px;
height: 300px;
position: relative;
border-radius: 50%;
border: 10px solid #22f;
margin: 30px;
background: yellow;
}
.x1a:after {
content: '';
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
width: 220px;
height: 220px;
background: #3d3 url(http://placehold.it/200x200/fa0/?text=this_is_an_image) center center no-repeat;
background-size: 100px 100px;
}
.x1b:after {
border-radius: 50%;
border: 6px solid #f22;
}
.aqua-outer-bg {
background: aqua;
}
.pink-inner-bg:after {
background-color: pink;
}
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<div class="x1a x1b aqua-outer-bg pink-inner-bg"></div>
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答案 1 :(得分:0)
胡言乱语
div {
border-radius: 50%
}
#a {
display: flex;
justify-content: center;
align-items: center;
height: 64px;
width: 64px;
border: 2px solid green;
}
img {
align-self: auto;
border: 2px solid blue;
border-radius: 50%;
padding:5%;
}
<div id="a">
<img src="https://rack.pub/media/janus.png" height="48">
</div>
答案 2 :(得分:0)
尝试运行此代码段:
$(document).ready(function() {
var sourceIndex = 1;
var colorIndex = 1;
var colors = [
"rgb(0, 132, 203)",
"rgb(255, 192, 203)",
"rgb(50, 192, 103)",
"rgb(255, 165, 0)"
];
var sources = [
"https://www.linkedin.com/favicon.ico",
"https://www.google.com/favicon.ico",
"http://jsfiddle.net/favicon.ico",
"https://getbootstrap.com/favicon.ico",
"https://www.facebook.com/favicon.ico"
];
$("button").click(function() {
changeStuff($(this).hasClass("changeImage") ? sources : colors, $(this));
function changeStuff(list, selector) {
counter(list, selector);
if (list == sources) {
selector
.prev()
.prev(".outer-circle")
.find(".inner-circle")
.find("img")
.attr("src", list[sourceIndex]);
} else {
if (
selector
.prev(".outer-circle")
.find(".inner-circle")
.css("background-color") == colors[colorIndex]
) {
selector
.prev(".outer-circle")
.find(".inner-circle")
.css("background-color", "tan");
} else {
selector
.prev(".outer-circle")
.find(".inner-circle")
.css("background-color", colors[colorIndex]);
}
}
}
});
function counter(list, selector) {
if (list == sources) {
sourceIndex == list.length - 1 ? (sourceIndex = 0) : sourceIndex++;
} else {
colorIndex == list.length - 1 ? (colorIndex = 0) : colorIndex++;
}
}
});
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.container {
display: flex;
align-items: center;
flex-direction: column;
}
.box {
display: flex;
}
.inner-circle {
border-radius: 50%;
width: 80%;
height: 80%;
display: flex;
align-items: center;
justify-content: center;
}
.box:first-child .inner-circle {
background-color: blue;
}
.box:nth-child(2) .inner-circle {
background-color: black;
}
.box:nth-child(3) .inner-circle {
background-color: maroon;
}
.outer-circle {
border-radius: 50%;
width: 100px;
height: 100px;
background-color: #e4e4e7;
display: flex;
justify-content: center;
align-items: center;
}
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<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="container">
<div class="box">
<div class="outer-circle">
<div class="inner-circle">
<img src="https://stackoverflow.com/favicon.ico" alt="">
</div>
</div>
<button class='changeColor'>Change Color</button>
<button class='changeImage'>Change Image</button>
</div>
<div class="box">
<div class="outer-circle">
<div class="inner-circle">
<img src="https://stackoverflow.com/favicon.ico" alt="">
</div>
</div>
<button class='changeColor'>Change Color</button>
<button class='changeImage'>Change Image</button>
</div>
<div class="box">
<div class="outer-circle">
<div class="inner-circle">
<img src="https://stackoverflow.com/favicon.ico" alt="">
</div>
</div>
<button class='changeColor'>Change Color</button>
<button class='changeImage'>Change Image</button>
</div>
</div>
&#13;