columns with custom width in bootstrap

//   5 columns layout for bootstrap
.col-xs-2_4,
.col-sm-2_4,
.col-md-2_4,
.col-lg-2_4
  position: relative
  min-height: 1px
  padding-right: 10px
  padding-left: 10px

.col-xs-2_4
  width: 20%
  float: left

@media (min-width: $screen-sm)
  .col-sm-2_4
    width: 20%
    float: left

@media (min-width: $screen-md)
  .col-md-2_4
    width: 20%
    float: left

@media (min-width: $screen-lg)
  .col-lg-2_4
    width: 20%
    float: left