.su-joint-btn {
  display: flex;
  position: relative;
}
.su-joint-btn .joint-btn-left {
  background: #666666;
  text-align: left;
}
.su-joint-btn .joint-btn-left:hover {
  background: #4d4d4d;
}
.su-joint-btn .joint-btn-left i {
  margin-right: 5px;
}
.su-joint-btn .joint-btn-right {
  background: #f57c00;
  text-align: right;
}
.su-joint-btn .joint-btn-right:hover {
  background: #fa8d1d;
}
.su-joint-btn .joint-btn-right i {
  margin-left: 5px;
}
.su-joint-btn .joint-btn-left,
.su-joint-btn .joint-btn-right,
.su-joint-btn span {
  letter-spacing: 2px;
  vertical-align: middle;
  color: #ffffff;
  font-weight: 400;
  line-height: 18px;
  font-size: 14px;
}
.su-joint-btn .joint-btn-left,
.su-joint-btn .joint-btn-right {
  text-decoration: none;
  width: 50%;
  padding: 15px 40px;
  box-shadow: 0 0 0 7px rgba(255, 255, 255, 0.2);
  -webkit-transition: all 0.25s ease-in-out;
  transition: all 0.25s ease-in-out;
}
.su-joint-btn span {
  width: 46px;
  height: 46px;
  line-height: 46px;
  border-radius: 50%;
  z-index: 1;
  position: relative;
  box-shadow: 0 0 0 6px rgba(255, 255, 255, 0.2);
  background: #FAFAF8;
  color: #444444;
  text-transform: uppercase;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
}
@media (max-width: 479px) {
  .su-joint-btn {
    display: block;
    width: 260px !important;
  }
  .su-joint-btn .joint-btn-left,
  .su-joint-btn .joint-btn-right {
    display: block;
    text-align: center;
    width: 100%;
    padding: 15px 0;
  }
  .su-joint-btn .joint-btn-left {
    margin-bottom: 7px;
  }
  .su-joint-btn span {
    width: 32px;
    height: 32px;
    line-height: 32px;
    font-size: 12px;
  }
}