body{
max-width:820px;
margin:auto;
font-family:system-ui;
line-height:1.9;
padding:40px;
}
h1{font-size:36px;}
.nav a{margin-right:15px;}
.post{margin-bottom:40px;}
.meta{color:#888;font-size:14px;}
img{max-width:100%;}
input,textarea{width:100%;padding:10px;margin-bottom:15px;}