CSS学习手册
<p>学习别人的CSS，这是一个传送门</p><h2 id="布局">布局</h2>
<h3 id="实现水平垂直居中">实现水平垂直居中</h3>
<p>在flex 格式化上下文中，设置了<code>margin: auto</code>的元素，在通过<code>justify-content</code>和<code>align-self</code>进行对齐之前，任何正处于空闲的空间都会分配到该方向的自动 margin 中去。</p>
<pre><code class="language-html"> <div class="box">
<div class="content"></div>
</div>
<style>
*{
margin: 0;
padding: 0;
}
.box{
width: 100vw;
height: 100vh;
display: flex;
}
.content{
margin: auto;
width: 50px;
height: 50px;
background-color: #000;
}
</style>
</code></pre>
<p>效果如下：</p>
<p><img src="https://gitee.com/windzzzz/cloud-image/raw/master/img/image-20220417163941036.png" alt="image-20220417163941036" loading="lazy"></p>
<h3 id="双飞翼布局">双飞翼布局</h3>
<p>双飞翼布局实现左中右三列布局，渲染时中间列比左右两列提前渲染，左右两列定宽，中间列自适应剩余宽度。</p>
<p>双飞翼布局的中间容器多了一个子容器，通过控制这个子容器的<code>margin</code>或者<code>padding</code>空出左右两列的宽度。</p>
<pre><code class="language-html"> <div class="box">
<div class="middle">
<div class="content">#content</div>
</div>
<div class="left">#left</div>
<div class="right">#right</div>
</div>
<style>
*{
margin: 0;
padding: 0;
}
.box{
min-width: 500px;
background-color: blue;
height: 100px;
}
.middle{
width: 100%;
height: 100px;
background-color: pink;
float: left;
}
.content{
margin-left: 100px;
margin-right: 100px;
}
.left,.right{
width: 100px;
float: left;
height: 100px;
}
.left{
margin-left: -100%;
background-color: red;
}
.right{
margin-left: -100px;
background-color: yellow;
}
</style>
</code></pre>
<p>效果如下：</p>
<p><img src="https://gitee.com/windzzzz/cloud-image/raw/master/img/image-20220417205502516.png" alt="image-20220417205502516" loading="lazy"></p>
<h3 id="grid布局配合clip-path实现gta5封面">grid布局配合clip-path实现GTA5封面</h3>
<p>可以使用grid布局配合clip-path来实现造型怪异的网格。</p>
<p><img src="https://gitee.com/windzzzz/cloud-image/raw/master/img/111740149-34267a00-88bf-11eb-8275-efc28a9b958b.png" alt="image" loading="lazy"></p>
<pre><code class="language-vue"><template>
<div class="parent">
<div class="child">
<img src="../assets/images/1.png">
</div>
<div class="child">
<img src="../assets/images/2.png">
</div>
<div class="child">
<img src="../assets/images/3.png">
</div>
<div class="child">
<img src="../assets/images/4.png">
</div>
<div class="child">
<img src="../assets/images/9.png">
</div>
<div class="child">
<img src="../assets/images/6.png">
</div>
<div class="child">
<img src="../assets/images/7.png">
</div>
<div class="child">
<img src="../assets/images/8.png">
</div>
<div class="child">
<img src="../assets/images/5.png">
</div>
</div>
</template>
<style scoped lang="scss">
body{
box-sizing: border-box;
}
img{
width:100%;
height: 100%;
object-fit: cover;
object-position: 40% 0;
}
.parent{
padding: .8rem;
background: black;
height: 95vh;
min-height: 500px;
width: 100%;
max-width: 600px;
margin: auto;
margin-top: 2.5vh;
border: 1px solid #c9b473;
overflow: hidden;
display: grid;
grid-template-columns: 1fr .7fr .3fr 1fr;
grid-template-rows: 20% 40% 20% 20%;
grid-template-areas: 'one two two three'
'four five five five'
'six five five five'
'six seven eight eight';
}
.child{
&:nth-child(1),
&:nth-child(2),
&:nth-child(3){
img{
width:120%;
height: 120%;
}
}
&:first-child{
grid-area: one;
clip-path: polygon(0% 0%, 93.24% 0%, 105.04% 110.16%, 0% 90%);
}
&:nth-child(2){
grid-area: two;
clip-path: polygon(0% 0%, 108.28% 0%, 96.45% 110.13%, 10.55% 110.93%);
}
&:nth-child(3){
grid-area: three;
clip-path:polygon(15.05% 0%, 100% 0%, 99.35% 91.7%, 3.08% 108.48%);
}
&:nth-child(4){
grid-area: four;
clip-path: polygon(0% -0.85%, 106.34% 9.98%, 121.32% 65.63%, 99.66% 109.89%, 1.86% 124.41%);
img{
width: 135%;
height: 135%;
}
}
&:nth-child(5){
grid-area: five;
clip-path: polygon(6.4% 6.48%, 47.24% 5.89%, 100% 0%, 98.41% 96.85%, 53.37% 100%, 53% 63.21%, 3.23% 73.02%, 14.30% 44.04%);
}
&:nth-child(6){
grid-area: six;
clip-path:polygon(2.14% 29.3%, 99.34% 15.42%, 98.14% 100.82%, 1.57% 101.2%);
}
&:nth-child(7){
grid-area: seven;
clip-path: polygon(7.92% 33.47%, 96.31% 23.39%, 95.38% 100%, 5.30% 100.85%);
}
&:nth-child(8){
grid-area: eight;
clip-path: polygon(2.5% 22.35%, 100% 0%, 100% 100%, 1.55% 100%);
}
&:nth-child(9){
grid-row-start: 3;
grid-row-end: 4;
grid-column-start: 2;
grid-column-end: 4;
clip-path:polygon(5.94% 28.66%, 100.61% -0.67%, 101.1% 108.57%, 5.4% 126.28%);
img{
object-position: 30% 50%;
height: 135%;
}
}
}
</style>
</code></pre>
<p>效果如下：</p>
<p><img src="https://gitee.com/windzzzz/cloud-image/raw/master/img/image-20220417233011671.png" alt="image-20220417233011671" loading="lazy"></p><br><br>
来源：https://www.cnblogs.com/Small-Windmill/p/16157902.html
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