.sort-column {
    color: #337ab7;
    cursor: pointer;
}
.sort-column:hover {
    color: #23527c;
}
.st-sort-ascent:before {
    opacity: 0.2;
    content: "\e150";
}
.st-sort-descent:before {
    content: "\e155";
}
.st-sort-ascent:before,
.st-sort-descent:before {
    float: right;
    display: block;
    font-family: 'Glyphicons Halflings';
    opacity: 0.5;
}