Modify Select2 CSS

gistfile1.css

/*Put this CSS declaration in another file which will be loadeed after Select2 Css file*/

/* He we reset the border-radius only for a particular bloc */
#sign-up-form .select2-container .select2-selection--single {
    border-bottom-left-radius: 0;
    border-top-left-radius: 0;
}


/* This css will force select2 box heigth to match with standard Bootstrap input element height*/
.select2-container .select2-selection--single {
    height: 35px;
}
.select2-container--default .select2-selection--single .select2-selection__rendered {
    line-height: 33px;
}
.select2-container--default .select2-selection--single .select2-selection__arrow {
    right: 5px;
    top: 5px;
}.