这篇文章主要介绍了使用纯CSS实现一个足球场俯视图的方法,具有一定借鉴价值,需要的朋友可以参考下。希望大家阅读完这篇文章后大有收获。下面让小编带着大家一起了解一下。
效果预览
源代码下载
https://github.com/comehope/front-end-daily-challenges
代码解读
定义 dom,容器中包含场地,场地中再包含中线、中点、中圈、禁区、罚球点、罚球弧、球门区、角球区等元素:
<div class="container">
<div class="field">
<span class="halfway-line"></span>
<span class="centre-circle"></span>
<span class="centre-mark"></span>
<span class="penalty-area"></span>
<span class="penalty-mark"></span>
<span class="penalty-arc"></span>
<span class="goal-area"></span>
<span class="corner-arc"></span>
</div>
</div>
居中显示:
body {
margin: 0;
height: 100vh;
display: flex;
align-items: center;
justify-content: center;
background: radial-gradient(sandybrown, maroon);
}
定义容器尺寸:
.container {
width: 120em;
height: 80em;
background-color: green;
font-size: 5px;
}
.container span {
display: block;
}
定义线型:
.container {
--line: 0.3em solid white;
}
画出场地边线:
.container {
padding: 5em;
}
.field {
width: inherit;
height: inherit;
border: var(--line);
}
画出中线:
.halfway-line {
width: calc(120em / 2);
height: 80em;
border-right: var(--line);
}
画出中圈:
.field {
position: relative;
}
.centre-circle {
width: 20em;
height: 20em;
border: var(--line);
border-radius: 50%;
position: absolute;
top: calc((80em - 20em) / 2);
left: calc((120em - 20em - 0.3em) / 2);
}
画出中点:
.centre-mark {
width: 2em;
height: 2em;
background-color: white;
border-radius: 50%;
position: absolute;
top: calc(80em / 2 - 1em);
left: calc(120em / 2 - 1em + 0.3em / 2);
}
画出禁区:
.penalty-area {
width: 18em;
height: 44em;
border: var(--line);
position: absolute;
top: calc((80em - 44em) / 2);
left: -0.3em;
}
画出罚球点:
.penalty-mark {
width: 2em;
height: 2em;
background-color: white;
border-radius: 50%;
position: absolute;
top: calc(80em / 2 - 1em);
left: calc(12em - 1em);
}
画出罚球弧:
.penalty-arc {
width: 20em;
height: 20em;
border: var(--line);
border-radius: 50%;
position: absolute;
top: calc((80em - 20em) / 2);
left: calc(12em - 20em / 2);
}
隐藏罚球弧左侧弧线,只留右侧弧线:
.field {
z-index: 1;
}
.penalty-area {
background-color: green;
}
.penalty-arc {
z-index: -1;
}
画出球门区:
.goal-area {
width: 6em;
height: 20em;
border: var(--line);
position: absolute;
top: calc((80em - 20em) / 2);
left: -0.3em;
}
画出角球区:
.field {
overflow: hidden;
}
.corner-arc::before,
.corner-arc::after {
content: '';
position: absolute;
width: 5em;
height: 5em;
border: 0.3em solid white;
border-radius: 50%;
--offset: calc(-5em / 2 - 0.3em);
left: var(--offset);
}
.corner-arc::before {
top: var(--offset);
}
.corner-arc::after {
bottom: var(--offset);
}
把 dom 中的子元素复制出一份,左右两侧各一份:
<div class="container">
<div class="field">
<div class="left">
<span class="halfway-line"></span>
<span class="centre-circle"></span>
<span class="centre-mark"></span>
<span class="penalty-area"></span>
<span class="penalty-mark"></span>
<span class="penalty-arc"></span>
<span class="goal-area"></span>
<span class="corner-arc"></span>
</div>
<div class="right">
<span class="halfway-line"></span>
<span class="centre-circle"></span>
<span class="centre-mark"></span>
<span class="penalty-area"></span>
<span class="penalty-mark"></span>
<span class="penalty-arc"></span>
<span class="goal-area"></span>
<span class="corner-arc"></span>
</div>
</div>
</div>
右侧的样式与左侧相同,只需要水平翻转即可:
.right {
position: absolute;
top: 0;
left: 50%;
transform: rotateY(180deg);
}
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