send/app/templates/file/file.css

.fileToast {
  flex: none;
  display: block;
  margin: 6px 0 0;
  overflow: hidden;
  font-size: 11px;
  line-height: 18px;
  color: var(--lightTextColor);
  background-color: var(--pageBGColor);
  position: relative;
  border: 3px solid rgba(12, 12, 12, 0.2);
  background-clip: padding-box;
  box-sizing: border-box;
  height: 53px;
  border-radius: 4px;
}

.fileToast__content {
  height: 100%;
  position: relative;
  z-index: 2;
}

.fileToast::after {
  position: absolute;
  z-index: 1;
  content: '';
  transition: all 0.25s;
  top: 0;
  left: 50%;
  width: 0;
  height: 100%;
  background-color: var(--primaryControlBGColor);
}

.fileToast:hover {
  background-color: #eee;
}

.fileToast--active {
  color: var(--primaryControlFGColor);
}

.fileToast--active::after {
  left: 0%;
  width: 100%;
}

.fileData {
  margin: 8px 16px 8px 44px;
  overflow: hidden;
}

.fileName {
  margin: 0;
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow: hidden;
}

.fileInfo {
  margin: 0;
}

.fileToast .fileIcon {
  margin: 0 8px;
}

@media (max-device-width: 750px), (max-width: 750px) {
  .fileToast {
    height: 32px;
  }

  .fileToast__content {
    display: flex;
    line-height: 13px;
    margin: 0;
    align-items: center;
  }

  .fileData {
    flex: auto;
    display: flex;
    flex-wrap: nowrap;
    margin: 0 6px 0 0;
  }

  .fileInfo {
    flex: none;
    margin-left: auto;
  }

  .fileToast .fileIcon {
    flex: none;
    transform: scale(0.5);
    color: transparent;
  }
}