.btn {
  -webkit-transition: all 0.4s ease-out;
  -moz-transition: all 0.4s ease-out;
  -o-transition: all 0.4s ease-out;
  -ms-transition: all 0.4s ease-out;
  transition: all 0.4s ease-out;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;  
}

.btn:last-child {
  margin-right: 0px !important;
}

.btn .icon {
  position: relative;
  top: 2px;
}
.btn .icon img {
  position: relative;
  top: -3px;
  width: 14px;
}
.btn.left-icon .icon {
  margin-right: 15px;
}
.btn.right-icon .icon {
  margin-left: 15px;
}

.btn-drop-buy {
  margin: 3px; /*margem entre os botões*/
  background-color: #C31343;
  color: #fff !important;
  border-radius: 20px;
  border-color: transparent;
  padding: 5px 30px;  
}

.btn.btn-drop-buy:hover {
  background-color: #f04e50;
  border-color: transparent;
}