Change highlight colour of select2 option

Select 2 is a popular jquery plugin for better select drop down lists. Styling it is a bit painful. Here’s how you change the highlight colour of the dropdown.

.select2-container--default .select2-results__option--highlighted[aria-selected] {
background-color: red;
color: #fff;
}

// Remove focus outline

.select2-container *:focus {
        outline: none;
 }