Answer for Portfolio Size

Hello, please try to replace

.single-project img { max-width:96%; }

with

.single-project .col-md-8 {
  padding-right: 0;
}

.single-project img {
  max-width: 100%;
  padding-right: 30px;
}

@media only screen and (max-width : 768px) {
  .single-project img {
    padding-right: 0;
  }
}