一、绝对定位+translate
<style>
article {
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
width: 300px;
height: 300px;
background-color: rgb(87, 31, 31);
}
</style>
<body>
<article>
<div></div>
</article>
</body>
二、flex
<style>
article {
display: flex;
width: 100vw;
height: 100vh;
justify-content: center;
align-items: center;
}
div {
width: 200px;
height: 200px;
background: #000;
}
</style>
</head>
<body>
<article>
<div></div>
</article>
</body>
三、flex+margin-auto
<style>
article {
margin: 0;
display: flex;
height: 100vh;
width: 100vw;
}
div {
width: 100px;
height: 100px;
background: #000;
margin: auto;
}
</style>
<body>
<article>
<div></div>
</article>
</body>
四、grid
<style>
main {
height: 100vh;
width: 100vw;
display: grid;
}
div {
width: 100px;
height: 100px;
background: #000;
justify-self: center;
align-self: center;
}
</style>
</head>
<body>
<main>
<div></div>
</main>
</body>
五、绝对定位
<style>
article {
width: 100vw;
height: 100vh;
}
div {
position: absolute;
top: 0;
left: 0;
right: 0;
bottom: 0;
margin: auto;
width: 100px;
height: 100px;
background: #000;
}
</style>
<body>
<article>
<div></div>
</article>
</body>
...待完善
