html, body {
  margin: 0;
}
/*
.flex {
  padding: 0 15px;
  margin: 0 auto;
}
*/
.flex__row {
  display: -webkit-flex;
  display: -moz-flex;
  display: -ms-flex;
  display: -o-flex;
  display: flex;
  -webkit-flex-wrap: wrap;
  -moz-flex-wrap: wrap;
  -ms-flex-wrap: wrap;
  -o-flex-wrap: wrap;
  flex-wrap: wrap;
  width: 100%;
  justify-content: flex-start;
  flex-direction: row;
}
.flex__row--margin-tb {
  margin-top: 15px;
  margin-bottom: 15px;
}
.flex__row--margin-lr {
  margin-left: 15px;
  margin-right: 15px;
  width: calc(100% - 30px);
}

.flex__row--space-between {
  justify-content: space-between;
}

.flex__row--space-around {
  justify-content: space-around;
}

.flex__row--center {
  justify-content: center;
}

.flex__row--end {
  justify-content: flex-end;
}

.flex__row--vertical-start {
  align-items: flex-start;
}

.flex__row--vertical-end {
  align-items: flex-end;
}

.flex__row--vertical-center {
  align-items: center;
}

.flex__row--vertical-stretch {
  align-items: stretch;
}


.flex__item {
  flex: 1;
  /*padding: 12px;*/
  margin: 0 15px;
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
}

.flex__item--fill {
  flex-grow: 1;
}

.flex__item--lg-1-of-2,
.flex__item--lg-2-of-4 {
  width: 50%;
}

.flex__item--lg-1-of-3 {
  width: 33.3%;
}

.flex__item--lg-2-of-3 {
  width: 66.6%;
}

.flex__item--lg-1-of-4 {
  width: 25%;
}

.flex__item--lg-3-of-4 {
  width: 75%;
}

.flex__item--lg-4-of-4 {
  width: 100%;
}

@media screen and (max-width: 1140px) {
  .flex__item--md-1-of-2,
  .flex__item--md-2-of-4 {
    width: 50%;
  }

  .flex__item--md-1-of-3 {
    width: 33.3%;
  }

  .flex__item--md-2-of-3 {
    width: 66.6%;
  }

  .flex__item--md-1-of-4 {
    width: 25%;
  }

  .flex__item--md-3-of-4 {
    width: 75%;
  }

  .flex__item--md-4-of-4 {
    width: 100%;
  }
}

@media screen and (max-width: 960px) {
  .flex__item--sm-1-of-2,
  .flex__item--sm-2-of-4 {
    width: 50%;
  }

  .flex__item--sm-1-of-3 {
    width: 33.3%;
  }

  .flex__item--sm-2-of-3 {
    width: 66.6%;
  }

  .flex__item--sm-1-of-4 {
    width: 25%;
  }

  .flex__item--sm-3-of-4 {
    width: 75%;
  }

  .flex__item--sm-4-of-4 {
    width: 100%;
  }
}

@media screen and (max-width: 768px) {
  .flex__item--xs-1-of-2,
  .flex__item--xs-2-of-4 {
    width: 50%;
  }

  .flex__item--xs-1-of-3 {
    width: 33.3%;
  }

  .flex__item--xs-2-of-3 {
    width: 66.6%;
  }

  .flex__item--xs-1-of-4 {
    width: 25%;
  }

  .flex__item--xs-3-of-4 {
    width: 75%;
  }

  .flex__item--xs-4-of-4 {
    width: 100%;
  }
}