SOURCE

<button class="action-btn">按钮</button>

.action-btn {
  position: relative;
  display: inline-block;
  color: #000000;
  border: solid 1px rgb(87, 154, 241);
  margin-left: 8px;
  font-size: 12px;
  width: auto;
  padding: 0.425rem .6rem;
  border-radius: .2rem;
  background-color: #FFFFFF;
}

.action-btn:hover{
  cursor: pointer;
  background-color: #f5f3f3;
}
.action-btn:active{
  border: #e2e8f6 solid 1px;
}