JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.5.0/angular.min.js"></script>
<div ng-controller="mainController as ctrl" class="row address" ng-class="{ edited: ctrl.editing.address }">
  <label>Address:</label>
  <div class="column">
    <input type="text" ng-model="ctrl.temp.address">
    <p class="main">{{ ctrl.address }}</p>
    <p class="supplement">Some additional info...</p>
  </div>
  <button ng-click="ctrl.changeClick('address')" ng-disabled="ctrl.editing.address && !ctrl.temp.address">{{ ctrl.editing.address ? 'Save..' : 'Edit..' }}</button>
</div>

CSS

div.row {
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  margin: 2em;
  font-size: 14px;
  font-family: sans-serif;
  font-weight: 400;
  font-style: normal;
}

label {
  text-align: right;
  width: 80px;
  padding-right: 1em;
}

div.column {
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  position: relative;
}

p.supplement {
  /* margin-top: 0.35em; */
  font-size: 12px;
  color: gray;
}

input {
  background: transparent;
  opacity: 0;
  position: absolute;
  outline: none;
  border: none;
  top: 0;
  left: 0;
  padding: 0;
  font-size: 14px;
  font-family: sans-serif;
  font-weight: 400;
  font-style: normal;
}

button {
  background: -webkit-linear-gradient(top, #fafafa, #eaeaea);
  outline: none;
  padding: 0.25em 1em;
  text-shadow: 0 1px 0 #eee;
  border: 1px solid #ccc;
  border-bottom: 1px solid #bbb;
  border-radius: 3px;
  box-shadow: 0 0px 5px rgba(111, 126, 141, 0);
  transition: box-shadow 0.05s ease-in-out;
}

button:hover {
  background: -webkit-linear-gradient(top, #fcfcfc, #f3f3f3);
  box-shadow: 0 0px 7px rgba(111, 126, 141, 0.2);
}

button:active {
  background: -webkit-linear-gradient(top, #fff, #fcfcfc);
  box-shadow: 0 0px 10px rgba(111, 126, 141, 0.5);
}

div.row.edited p.main {
  opacity: 0;
}

div.row.edited input {
  opacity: 1;
  z-index: 1;
}

JavaScript

var app = angular.module('app', []);

app.controller('mainController', function() {
  var vm = this;
  vm.address = '127.0.0.1';
  vm.name = 'anabelbreakfasts';
  vm.editing = {
    address: false
  };
  vm.temp = {
    address: null
  };

  vm.changeClick = function(element) {
    vm.editing[element] = !vm.editing[element];
    if (vm.editing[element]) {
      vm.temp[element] = vm[element];
      var input = angular.element(document.querySelector('div.row.' + element + ' input'))[0];
      input.focus();
      input.select();
    } else {
      vm[element] = vm.temp[element];
    }
  };
});