Height select 2 in bootstrap 3.3.4

select2-bootstrap3.css

/**
* Change three lines
*
/* line 11 */
.select2-container .select2-selection--single {
    box-sizing: border-box;
    cursor: pointer;
    display: block;
    height: 34px;
    user-select: none;
    -webkit-user-select: none; }

/* line 131 */
.select2-container--default .select2-selection--single .select2-selection__rendered {
    color: #444;
    line-height: 32px; }
    
/* line 139 */
.select2-container--default .select2-selection--single .select2-selection__arrow {
    height: 32px;
    position: absolute;
    top: 1px;
    right: 1px;
    width: 20px; }

Good solution

thats greate

Worked like charm