.doc-search {
  margin-bottom: 70px;
}
.doc-search .input-group {
  position: relative;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
  -ms-flex-align: stretch;
  align-items: stretch;
  width: 100%;
  max-width: 700px;
}
.doc-search .input-group .form-control {
  position: relative;
  -ms-flex: 1 1 auto;
  flex: 1 1 auto;
  width: 1%;
  min-width: 0;
  margin-bottom: 0;
  height: 54px;
  border-radius: 27px 0 0 27px;
  font-size: 21px;
  font-weight: 300;
  padding: 8px 30px;
  border: none;
  box-shadow: none;
}
.doc-search .input-group .input-group-append .btn {
  height: 54px;
  border-radius: 0 27px 27px 0;
}
@media (max-width: 575px) {
  .doc-search .input-group {
    flex-direction: column;
  }
  .doc-search .input-group .form-control {
    width: 100%;
    border-radius: 27px;
    margin-bottom: 15px;
  }
  .doc-search .input-group .input-group-append .btn {
    width: 100%;
    border-radius: 27px;
  }
  #documentation .doc-search {
    margin: 30px 0px;
  }
}