*,
*::after,
*::before {
  box-sizing: inherit; }

html {
  font-size: 62.5%;
  box-sizing: border-box;
  font-family: 'Roboto Slab', serif; }

body {
  background-color: #a4b0be;
  color: #fff;
  padding: 0;
  margin: 0;
  height: 80vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-around;
  position: relative; }

.heading {
  font-weight: 500;
  position: absolute;
  align-self: flex-start; }

.container {
  width: 40rem;
  height: 15rem;
  background-color: teal;
  display: flex;
  justify-content: center; }

.watch {
  font-size: 4rem;
  font-weight: 500;
  width: 25rem;
  height: 6rem;
  text-align: center;
  position: absolute;
  align-self: center; }
  .watch__time {
    border: 2px solid orange; }

.progress-bar {
  position: absolute;
  width: 0rem;
  height: .5rem;
  align-self: flex-end;
  background-color: #ff793f; }

/*for stop watch*/
.watch-menu {
  align-self: flex-end;
  display: flex;
  justify-content: center;
  align-items: center; }
  .watch-menu .btn {
    font-size: 1.5rem;
    text-transform: uppercase;
    color: #fff;
    background-color: #ff793f;
    padding: .5rem 1rem;
    margin: 0;
    cursor: pointer;
    border: none;
    transition: .2s; }
    .watch-menu .btn:first-child {
      border-top-left-radius: .5rem; }
    .watch-menu .btn:last-child {
      border-top-right-radius: .5rem; }
    .watch-menu .btn:focus {
      outline: none; }
    .watch-menu .btn:hover {
      background-color: #f75e1c; }
    .watch-menu .btn:active {
      transform: scale(1.1); }