body {
  margin: 0;
  padding: 0;
  background: #000;
}

h2 {
  text-align: center;
  font-size: 70px;
  font-family: "Lucida Sans", "Lucida Sans Regular", "Lucida Grande",
    "Lucida Sans Unicode", Geneva, Verdana, sans-serif;
  color: #ddd;
  text-shadow: 2px 3px 4px #000;
}

.wrapper {
  width: 80%;
  margin: auto;
  position: relative;
  top: 60px;
}

.container {
  width: 55%;
  min-width: 250px;
  max-width: 350px;
  margin: auto;
  padding-bottom: 40px;
  background: #ffff;
  border-radius: 10px;
}

#timerSection {
  width: 80%;
  margin: auto;
  text-align: center;
}

#SessionTimer_div {
  width: 200px;
  height: 200px;
  line-height: 200px;
  border-radius: 50%;
  border: 2px solid #ddd;
  margin: auto;
}

#timerSection {
  font-size: 40px;
}

#BreakTimer_div {
  width: 200px;
  height: 200px;
  line-height: 200px;
  margin: auto;
  border-radius: 50%;
  border: 2px solid #ddd;
  display: none;
}

.btnContainer {
  width: 100%;
  text-align: center;
  position: relative;
  top: 30px;
}

.btnContainer button {
  width: 30%;
  height: 30px;
  border: none;
  background: transparent;
}

.Sessionbtn {
  width: 59%;
  display: inline-block;
}

.breakbtn {
  width: 39%;
  display: inline-block;
}

.start_button {
  width: 80%;
  padding: 20px;
  margin: auto;
  text-align: center;
  position: relative;
  top: 40px;
}

#stopTimer_pause_btn {
  display: none;
}

.start_button button {
  width: 80px;
  height: 80px;
  font-size: 30px;
  border-radius: 50% !important;
  border: none;
  background: skyblue;
  outline-style: none;
  box-shadow: 2px 1px 2px 2px #ddd;
}

.start_button button:hover {
  box-shadow: none;
  transition: 1s;
}