html:

css:

*{
       padding: 0;    margin: 0;}html{
       font-size: 62.5%;}html,body{
       height: 100%;}body{
       font-family: "Helvetica Neue", Helvetica, STHeiTi, Arial, sans-serif;    font-size: 1.4rem;}ul,li{
       list-style: none;}a{
       text-decoration: none;}