$input-prefix: #{$css-prefix}input;
.#{$input-prefix} {
    @include input;
    &-wrapper{
        display: inline-block;
        width: 100%;
        position: relative;
        vertical-align: middle;
        line-height: normal
    }
    &-icon{
        &-pre,&-aft{
            font-size:$input-icon-size;
        }
    }
}

.#{$input-prefix}-group{
    @include input-group("#{$input-prefix}");
}