.form-group-l {
  margin-bottom: 3rem;
}

.submit-margin{
  margin-top: 30px;
  margin-bottom: 30px;
  width: 100%;
  padding-right: 15px;
  padding-left: 15px;
  margin-right: auto;
  margin-left: auto;
  display:flex;
  align-items: center;/*垂直居中*/
  justify-content: center;/*水平居中*/
}

.bt-lg{
  padding: 0.5rem 5rem;
}

.inline {
  display: inline-block;
  width: 5rem;
}

.inline-s {
  display: inline-block;
  width: 2.2rem !important;
}/*age*/

.inline-m {
  display: inline-block;
  width: 4.5rem!important;
}/*year/month*/

.form-group span{
  margin-right: 3px;
}

.material-icons.md-12 {
  font-size: 0.9em;
  color: rgba(0, 0, 0, 0.54);
}/*问号 icon*/

.material-icons.md-16 {
  font-size: 18px;
  color: rgba(0, 0, 0, 0.54);
  margin-right: 2px;
  cursor: pointer;
  transition: all 0.2s ease-in-out;
  webkit-transition: all 0.1s;
}

.material-icons.md-16:hover{
  color: rgba(0, 0, 0, 0.8);
}/*减号 icon*/


/*
by Herman
*/
.hide {
  display: none;
}

.container {
    margin-bottom: 100px;
}