实现DIV绝对居中的几种方式
<style> .wrap{ height: 300px; background: yellow; position: relative; } .box{ width: 100px; height: 100px; background: red;} .wrap1 .box{ position:
<style> .wrap{ height: 300px; background: yellow; position: relative; } .box{ width: 100px; height: 100px; background: red;} .wrap1 .box{ position: