.twitterWrap {
  height: 400px;
  margin: 30px auto;
  position: relative;
}

.twitterWrap iframe{
  height:400px !important;
  max-height:initial !important;
  margin: 0 auto;
}


@media screen and (min-width: 900px){
.twitterWrap iframe{
  width:100% !important;
  max-width:initial !important;
}
}