* {margin: 0; padding: 0; box-sizing: border-box;}
*::before,*::after {box-sizing: border-box;}
a {color: inherit; text-decoration: none;}
input,button {font-family: inherit;}
ol,ul {list-style: none;}
table {border-collapse: collapse; border-spacing: 0;}
原文：https://www.cnblogs.com/kino404/p/13288039.html