Quick CSS tricks.

tricks.css

/* Smooth font */
.smooth-font {
  transform: rotate(-0.0000000001deg);
}

/* Center an element vertically + horizontally */
.center {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  margin: auto;
}

/* Center text vertically */
.parent {
  display: table;
}
.child {
  display: table-cell;
  text-align: center;
  vertical-align: middle;
}