Adding Styles to a Placeholder in LESS

Let's make a function that will add styles cross-browser via pseudo-element placeholder:

styles.less.placeholder(@code) {
  &::-webkit-input-placeholder {
    @code();
  }
  &:-ms-input-placeholder {
    @code();
  }
  &::-moz-placeholder {
    @code();
  }
  &::placeholder {
    @code();
  }
}

Let's use our function:

styles.lessinput {
  .placeholder({
    color: white; 
    background-color: red;
  });
}

Compilation result:

styles.cssinput::-webkit-input-placeholder {
  color: white; 
  background-color: red;
}
input::-ms-input-placeholder {
  color: white; 
  background-color: red;
}
input::-moz-placeholder {
  color: white; 
  background-color: red;
}
input::placeholder {
  color: white; 
  background-color: red;
}