.ub {
  display: flex;
  position: relative;
  flex-shrink: 0;
}
.shrink0 {
  flex-shrink: 0;
}
.ub-ver {
  flex-direction: column;
}

.ub-h {
  flex-direction: row;
}

.ub-pc {
  justify-content: center;
}

.ub-ac {
  align-items: center;
}

.ub-ae {
  align-items: flex-end;
}

.ub-pe {
  justify-content: flex-end;
}

.ub-ps {
  justify-content: flex-start;
}

.ub-pb {
  justify-content: space-between;
}

.ub-pa {
  justify-content: space-around;
}

.ub-f1 {
  flex: 1;
}

.fw {
  width: 100%;
}

.hw {
  width: 50%;
}

.fh {
  height: 100%;
}
.main{
  margin: 0;
  padding: 0;
}