.ametxt-slider{
width:100%;
 
}

.ametxt-slider-image{
width:100%;
 
  position:relative;
  background-position:center;
  background-repeat:no-repeat;
  background-size:cover;
  border-radius:9px;
  overflow:hidden;
  
}
.ametxt-slider-text{
position:absolute;
  bottom:0;
  padding:20px;
  width:100%;
  left:0;
  z-index:99;
  
}

@media (max-width: 768px) {
  .ametxt-slider-image{
width:100%;
  height:300px;
}