@mixin sd_flex{
  display:-webkit-box;
  display:-ms-flexbox;
  display: -webkit-flex;
  display:flex;
}
@mixin sd_flex_row{
  -webkit-box-orient: horizontal;
  -webkit-box-direction: normal;
  -ms-flex-direction: row;
  -webkit-flex-direction: row;
  flex-direction: row;
}
@mixin sd_flex_column{
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
  -ms-flex-direction: column;
  -webkit-flex-direction: column;
  flex-direction: column;
}
@mixin sd_flex_jsb{
  -webkit-box-pack:justify;
  -ms-flex-pack:justify;
  -webkit-justify-content:space-between;
  justify-content:space-between;
}

@mixin sd_flex_jsa{
  -webkit-justify-content: space-around;
  -ms-flex-pack: distribute;
  justify-content: space-around;
}
@mixin sd_flex_jc{
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  -webkit-justify-content: center;
  justify-content: center
}
@mixin sd_flex_je{
  -webkit-box-pack: end;
  -ms-flex-pack: end;
  -webkit-justify-content: flex-end;
  justify-content: flex-end;
}
@mixin sd_flex_js{
  -webkit-box-pack: start;
  -ms-flex-pack: start;
  -webkit-justify-content: flex-start;
  justify-content: flex-start;
}
@mixin sd_flex_wrap{
  -ms-flex-wrap: wrap;
  -webkit-flex-wrap: wrap;
  flex-wrap: wrap;
}
@mixin sd_flex_nowrap{
  -ms-flex-wrap: nowrap;
  -webkit-flex-wrap: nowrap;
  flex-wrap: nowrap;
}
@mixin sd_flex_flow_rw{
  -ms-flex-flow: row wrap;
  -webkit-flex-flow: row wrap;
  flex-flow: row wrap;
}
@mixin sd_flex_flow_cw{
  -ms-flex-flow: column wrap;
  -webkit-flex-flow: column wrap;
  flex-flow: column wrap;
}
@mixin sd_flex_align_center{
  -webkit-box-align: center;
  -ms-flex-align: center;
  -webkit-align-items: center;
  align-items: center;
}
@mixin sd_flex_align_end{
  -webkit-box-align: end;
  -ms-flex-align: end;
  -webkit-align-items: flex-end;
  align-items: flex-end;
}

@mixin sd_flex_align_start{
  -webkit-box-align: start;
  -ms-flex-align: start;
  -webkit-align-items: flex-start;
  align-items: flex-start;
}

@mixin sd_flex_align_stretch{
  -webkit-box-align: stretch;
  -ms-flex-align: stretch;
  -webkit-align-items: stretch;
  align-items: stretch;
}

@mixin sd_flex_auto{
  -webkit-box-flex:1;
  -ms-flex:auto;
  flex:auto;
}

@mixin sd_flex_align_self_center{
  -webkit-align-self:center;
  -ms-align-self:center;
  align-self:center;
}

@mixin sd_flex_row_reverse{
  -ms-flex-direction:row-reverse; 
  -webkit-flex-direction:row-reverse; 
  flex-direction:row-reverse;
}

@mixin sd_flex_row_reverse{
  -ms-flex-direction:row-reverse; 
  -webkit-flex-direction:row-reverse; 
  flex-direction:row-reverse;
}

@mixin sd_flex_column_reverse{
  -ms-flex-direction:column-reverse; 
  -webkit-flex-direction:column-reverse; 
  flex-direction:column-reverse;
}