.category-select {
  display: inline-block;
  font-size: 1.1rem;
  color: red;
  cursor: pointer;
  padding: 5px 10px;
  min-width: 75px;
  text-align: center;
  border: 1px solid red;
  margin-right: 15px;
}

.category-radio {
  position: absolute;
  top: -9999px;
}
.category-radio:checked + .category-select {
  background: red;
  color: white;
}

.client-logos {
  padding-top: 30px;
}
.client-logos .client-logo {
  display: inline-block;
  width: 0;
  height: 0;
  overflow: hidden;
  padding: 0;
  font-size: 1.8rem;
  font-weight: bold;
  color: grey;
  margin-left: -4px;
  background: lightgrey;
  text-align: center;
  transition: all 0.3s ease-in-out;
  transform: scale(0);
}

#category-all:checked ~ .client-logos .category-all {
  transform: scale(1);
  padding: 10px;
  width: 195px;
  height: auto;
  margin-right: 5px;
}

#category-struktural:checked ~ .client-logos .category-struktural {
  transform: scale(1);
  padding: 10px;
  width: 195px;
  height: auto;
  margin-right: 5px;
}

#category-pkit:checked ~ .client-logos .category-pkit {
  transform: scale(1);
  padding: 10px;
  width: 195px;
  height: auto;
  margin-right: 5px;
}

#category-psit:checked ~ .client-logos .category-psit {
  transform: scale(1);
  padding: 10px;
  width: 195px;
  height: auto;
  margin-right: 5px;
}

#category-pks:checked ~ .client-logos .category-pks {
  transform: scale(1);
  padding: 10px;
  width: 195px;
  height: auto;
  margin-right: 5px;
}

#category-tu:checked ~ .client-logos .category-tu {
  transform: scale(1);
  padding: 10px;
  width: 195px;
  height: auto;
  margin-right: 5px;
}

#category-b2b:checked ~ .client-logos .category-b2b {
  transform: scale(1);
  padding: 10px;
  width: 195px;
  height: auto;
  margin-right: 5px;
}