zammad/app/assets/stylesheets/layout.css

.horizontal, .vertical {
  display: -webkit-box !important;
  display: -ms-flexbox !important;
  display: -moz-flex !important;
  display: -webkit-flex !important;
  display: flex !important;
}

.horizontal {
  -webkit-box-orient: horizontal;
  -ms-flex-direction: row;
  -moz-flex-direction: row;
  -webkit-flex-direction: row;
  flex-direction: row;
}

.horizontal.reverse {
  -webkit-box-direction: reverse;
  -ms-flex-direction: row-reverse;
  -moz-flex-direction: row-reverse;
  -webkit-flex-direction: row-reverse;
  flex-direction: row-reverse;
}

.vertical {
  -webkit-box-orient: vertical;
  -ms-flex-direction: column;
  -moz-flex-direction: column;
  -webkit-flex-direction: column;
  flex-direction: column;
}

.vertical.reverse {
  -webkit-box-direction: reverse;
  -ms-flex-direction: column-reverse;
  -moz-flex-direction: column-reverse;
  -webkit-flex-direction: column-reverse;
  flex-direction: column-reverse;
}

.relative {
  position: relative;
}

.fit {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 100%;
}

body.fit {
  margin: 0;
}

.flex {
  -webkit-box-flex: 1;
  -ms-flex: 1;
  -moz-flex: 1;
  -webkit-flex: 1;
  flex: 1;
}

.flex-auto {
  -webkit-box-flex: 1;
  -ms-flex: 1 1 auto;
  -moz-flex: 1 1 auto;
  -webkit-flex: 1 1 auto;
  flex: 1 1 auto;
}

.flex-none {
  -webkit-box-flex: none;
  -ms-flex: none;
  -moz-flex: none;
  -webkit-flex: none;
  flex: none;
}

.flex-1 {
  -webkit-box-flex: 1;
  -ms-flex: 1;
  -moz-flex: 1;
  -webkit-flex: 1;
  flex: 1;
}

.flex-2 {
  -webkit-box-flex: 2;
  -ms-flex: 2;
  -moz-flex: 2;
  -webkit-flex: 2;
  flex: 2;
}

.flex-3 {
  -webkit-box-flex: 3;
  -ms-flex: 3;
  -moz-flex: 3;
  -webkit-flex: 3;
  flex: 3;
}


.justify-start {
  -webkit-box-pack: start;
  -ms-flex-pack: start;
  -moz-justify-content: flex-start;
  -webkit-justify-content: flex-start;
  justify-content: flex-start;
}

.justified {
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  -moz-justify-content: center;
  -webkit-justify-content: center;
  justify-content: center;
}

.justify-end {
  -webkit-box-pack: end;
  -ms-flex-pack: end;
  -moz-justify-content: flex-end;
  -webkit-justify-content: flex-end;
  justify-content: flex-end;
}

.justify-between {
  -webkit-box-pack: justify;
  -ms-flex-pack: justify;
  -moz-justify-content: space-between;
  -webkit-justify-content: space-between;
  justify-content: space-between;
}


.start {
  -webkit-box-align: start;
  -ms-flex-align: start;
  -moz-align-items: flex-start;
  -webkit-align-items: flex-start;
  align-items: flex-start;
}

.center {
  -webkit-box-align: center;
  -ms-flex-align: center;
  -moz-align-items: center;
  -webkit-align-items: center;
  align-items: center;
}

.end {
  -webkit-box-align: end;
  -ms-flex-align: end;
  -moz-align-items: flex-end;
  -webkit-align-items: flex-end;
  align-items: flex-end;
}