@mixin alignitems($direction) {
    -ms-align-items: $direction;
    -webkit-align-items: $direction;
    -moz-align-items: $direction;
    align-items: $direction;
}

$y-directions: center flex-start flex-end baseline stretch;
@mixin aligncontent($direction) {
    -ms-justify-content: $direction;
    -webkit-justify-content: $direction;
    -moz-justify-content: $direction;
    justify-content: $direction;
}

$x-directions: center flex-start flex-end space-between space-around;
.ls-flex {
    display: -moz-flex;
    display: -webkit-flex;
    display: flex;
    @each $alignment in $y-directions {
        &.align-items-#{$alignment} {
            @include alignitems($alignment);
        }
    }
    @each $alignment in $x-directions {
        &.align-content-#{$alignment} {
            @include aligncontent($alignment);
        }
    }
    &.wrap {
        -ms-flex-wrap: wrap;
        -webkit-flex-wrap: wrap;
        -moz-flex-wrap: wrap;
        flex-wrap: wrap;
    }
    @for $i from 1 through 12 {
        .grow-#{$i} {
            flex-grow: $i;
        }
        .col-#{$i} {
            width: 100*( $i/12)*1%;
        }
    }
}

.ls-flex-item {
    flex: 1;
    @for $i from 1 through 12 {
        .grow-#{$i} {
            flex-grow: $i;
        }
        .col-#{$i} {
            width: 100*( $i/12)*1%;
        }
    }
}

.ls-flex-row {
    @extend .ls-flex;
    -ms-flex-direction: row;
    -webkit-flex-direction: row;
    -moz-flex-direction: row;
    width: 100%;
    flex-direction: row;
}

.ls-flex-column {
    @extend .ls-flex;
    -ms-flex-direction: column;
    -webkit-flex-direction: column;
    -moz-flex-direction: column;
    flex-direction: column;
    &.fill {
        height: 100%;
    }
}