body,html{padding:0;margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif}*{box-sizing:border-box}main{padding:5rem 0;flex:1 1;display:flex;flex-direction:column;justify-content:center;align-items:center}code{background:#fafafa;border-radius:5px;padding:.75rem;font-family:Menlo,Monaco,Lucida Console,Courier New,monospace}.container{height:100vh;display:flex;flex-direction:column;justify-content:center;align-items:center}ul{list-style-type:none}li{padding:4px 10px;border-radius:5px}li:hover{background-color:#eee}button{border-radius:5px;padding:5px;transition:.5s}.btn-add{background:#fff;border:1px solid green;color:green;margin-left:10px}.btn-add:hover{background:green;color:#fff}.btn-done{background:#fff;border:1px solid green;color:green}.btn-done:hover{background:green;color:#fff}.btn-focus{background-color:#fff;border:1px solid blue;color:blue}.btn-focus:hover{background:blue;color:#fff}.btn-del{background-color:#fff;border:1px solid red;color:red;margin-right:10px}.btn-del:hover{background:red;color:#fff}