.spchat-img01 {
  margin-right: -3rem;
  width: 30vw;
  margin-left: 1rem;
  padding-bottom: 1rem;
  max-width: 200px;
}

.spchat-img02 {
  width: 70vw;
  margin-left: 1rem;
  max-width: 500px;
}

.mg-t3 {
  margin-top: 3rem;
}

.wid25 {
  width: 25%;
}