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CSS

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JavaScript

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HTML 

              
                <div object>
  <h1>Todos</h1>
  <ul array key="todos" sortable>
    {{#for todo in todos}}
      <li object key:text="@innerText" edit:text>
        {{default todo.text "New todo"}}
      </li>
    {{/for}}
  </ul>
  <button new:todo>Add todo</button>
</div>
!

CSS 

              
                * {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  padding: 0 1.5rem;
  line-height: 1.4;
  font-family: -apple-system, BlinkMacSystemFont, avenir next, avenir, segoe ui, helvetica neue, helvetica, Ubuntu, roboto, noto, arial, sans-serif;
}

h1 {
  margin-top: 2rem;
  margin-bottom: .75rem;
  font-size: 24px;
}

ul[key="todos"] {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  margin-bottom: 1.25rem;
  padding-left: 30px;
  font-size: 18px;
}

ul[key="todos"] li {
  margin-bottom: 8px;
  padding: 2px 6px 3px;
  border-radius: 3px;
  cursor: pointer;
}

ul[key="todos"] li:hover {
  background-color: #e9ecef;
}

/* button styles */

[new\:todo] {
  -webkit-appearance: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: antialiased;
  align-content: center;
  align-items: center;
  background-color: #1a73e8;
  background-position: 0 0;
  border: 1px solid transparent;
  border-radius: 4px;
  box-sizing: border-box;
  color: #fff;
  cursor: pointer;
  display: inline-flex;
  flex-wrap: nowrap;
  font: inherit;
  font-size: 16px;
  font-weight: 500;
  height: 36px;
  justify-content: space-around;
  letter-spacing: .5px;
  margin: 0;
  min-width: 72px;
  overflow: hidden;
  padding: 0px 14px 1px;
  text-align: center;
  text-decoration: none;
  text-rendering: optimizelegibility;
  text-shadow: 1px 1px 0 #1567d3;
  transition: background-color .2s, box-shadow .2s, color .2s;
  vertical-align: middle;
  word-wrap: break-word;
}

[new\:todo]::-moz-focus-inner {
    border: 0;
    padding: 0;
}

[new\:todo]:active {
  background-color: #174ea6;
  box-shadow: rgba(60,64,67,.3) 0 1px 2px 0,rgba(60,64,67,.15) 0 1px 3px 1px;
  outline: 5px auto -webkit-focus-ring-color;
  text-shadow: none;
}

[new\:todo]:hover {
  background-color: #185abc;
  box-shadow: rgba(60,64,67,.3) 0 1px 2px 0,rgba(60,64,67,.15) 0 1px 3px 1px;
  outline: 0;
  text-shadow: none;
}

[new\:todo]:focus {
  background-color: #185abc;
  box-shadow: #aecbfa 0 0 0 2px;
  outline: 0;
  text-shadow: none;
  transition: none 0s;
}
!

JS 

              
                /***************************************
 *           REMAKE DEMO               *
 *           ===========               *
 *                                     *
 *    See how Remake works without     *
 *        installing anything!         *
 *                                     *
 *    For the full framework, with     *
 *    data saving and user accounts:   *
 *                                     *
 *    https://docs.remaketheweb.com/   *
 ***************************************/

Remake.demoInit({
  // Log data to console when page is 
  // saved, useful for debugging
  logDataOnSave: true,
  // Load Sortable library for drag and 
  // drop reordering (only use if your 
  // app  needs drag-and-drop reordering)
  sortable: {sortablejs: Sortable},
  // Load crostini for displaying 
  // temporary success/error notices
  crostini: crostini,
  // Load Handlebars for rendering the 
  // demo on the client-side
  Handlebars: Handlebars,
  // Where in localStorage to store data
  demoLocalStorageNamespace: "remake-demo-todo-app",
  // Initial data to load into the demo app
  demoStartingData: {
    "todos": [
      {"text": "Get a cat"},
      {"text": "Buy a rocket ship"},
      {"text": "Go to Mars"}
    ]
  }
});
!
999px

Console