*,*:before,*:after{box-sizing:border-box}html,body{margin:0;padding:0;height:100%;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif}#app{height:100%}.email-body{font-size:14px;line-height:1.6;color:#333;word-break:break-word;overflow-x:auto}.email-body img{max-width:100%;height:auto}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:#f1f1f1}::-webkit-scrollbar-thumb{background:#ccc;border-radius:3px}::-webkit-scrollbar-thumb:hover{background:#999}