.lowBrower-box {
  width: 600px;
  padding: 30px;
  margin: 200px auto; 
  background: #f2f2f2;
}
.lowBrower-title {
  font-size: 24px;
  font-weight: 900;
  color: #333;
  text-align: center;
}
.lowBrower-tip {
  margin-top: 30px;
  font-size: 16px;
  color: #999;
  text-align: center;
}
.lowBrower-list {
  margin-top: 30px;
  text-align: center;
}
.lowBrower-list-item {
  display: inline-block;
  width: 60px;
  height: 66px;
  background: url(./browsers.png) no-repeat 0 0;
  margin: 0 10px;
}