metamask-extension/ui/app/css/itcss/components/transaction-list.scss

.tx-list-header {
  margin: 1.8em 1.3em 1.8em 1.3em;
}

.tx-list-content-divider {
  margin: 0.1em 1.3em 0.1em 1.3em;
  height: 1px;
  background: rgb(231, 231, 231);
  flex: 0 0 1px;
}

.tx-list-container {
  height: 87.5%;
  overflow-y: scroll;
}

.tx-list-item-wrapper {
  flex: 0 0 70px;
  align-items: stretch;
  justify-content: flex-start;
  margin: 0em 1.3em 0em 1.3em;
}

.tx-list-date-wrapper {
  flex-grow: 1;
  flex-shrink: 1;
  flex-basis: auto;
  margin-top: 6px;
}

.tx-list-content-wrapper {
  align-items: stretch;
  margin-bottom: 8px;
}

.tx-list-date {
  color: $dusty-gray;
  font-size: 14px;
}

.tx-list-identicon-wrapper {
  align-self: center;
  flex: 1 1 auto;
  margin-left: 3px;
}

.tx-list-account-wrapper {
  flex: 3 3 auto;
  align-self: center;
}

.tx-list-account {
  font-size: 16px;
}

.tx-list-status-wrapper {
  align-self: center;
  flex: 5 5 auto;
}

.tx-list-status {
  color: $dusty-gray;
  font-size: 16px;
}

.tx-list-details-wrapper {
  align-self: center;
  flex: 2 2 auto;
}

.tx-list-value {
  font-size: 16px;
}

.tx-list-fiat-value {
  font-size: 12px;
}