.form-content {
  margin: 0;
  width: 100%;
}
.form-content form {
  width: 100%;
}

.form-content .form-head {
  width: 100%;
  height: 40px;
  line-height: 40px;
  position: relative;
  border-bottom: 1px solid rgba(0,0,0,0.1);
  color: var(--theme-1);
  text-transform: uppercase;
  font-weight: 500;
  margin-bottom: 10px;
}
.form-content .form-head:after {
  position: absolute;
  content: '';
  background: var(--theme-1);
  left: 0;
  bottom: -2.5px;
  height: 5px;
  width: 90px;
  border-radius: 5px;
}
.loading {
width: 98%;
height: 95%;
position: absolute;
margin: 0;
padding:0;
background: rgba(0,0,0,0.3);
z-index: 1
}
.loading i {
position: absolute;
font-size: 35px;
color: #fff !important;
z-index: 2;
left: calc(50% - 25px);
top: calc(50% - 60px)
}
.loading  span {
color: #fff;
position: absolute;
z-index: 2;
left: calc(50% - 80px);
top: calc(50% - 10px)
}
.form-child {
position: relative;
}
.form-child .changeData {
position: absolute;
top: 0;
width: 94%;
height: 100%;
border: 1px solid #ced4da;
border-right:0;
padding: .375rem .75rem;
color: #495057
}