<div class="page-wrapper">
  <div class="btn-round btn-normal"></div>
  <div class="btn-round btn-pressed"></div>
  <div class="btn-wide btn-normal">Click Me</div>
</div>

body {
  margin: 0;
}
.page-wrapper {
  height: 100vh;
  margin: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-flow: row wrap;
  background-color: #e3e7ea;
}
.btn-round {
  width: 60px;
  height: 60px;
  margin: 10px;
  border-radius: 50%;
}

.btn-wide {
  width: 300px;
  height: 60px;
  margin: 10px;
  border-radius: 50px;
  font-size: 18px;
  color: #708090;
  
  display: flex;
  align-items: center;
  justify-content: center;
}

.btn-normal {
  box-shadow: -3px -3px 7px #f5f5f5, 3px 3px 7px #bbc3cc;
}

.btn-pressed {
  box-shadow: -3px -3px 7px #f5f5f5 inset, 3px 3px 7px #bbc3cc inset;
}

.btn-normal:active {
  box-shadow: -3px -3px 7px #f5f5f5 inset, 3px 3px 7px #bbc3cc inset;
  font-size: 16px;
  user-select: none;
}