.tex sub, .latex sub, .latex sup {
  text-transform: uppercase;
}

.tex sub, .latex sub {
  vertical-align: -0.4ex;
  margin-left: -0.1667em;
  margin-right: -0.125em;
}

.tex, .latex, .tex sub, .latex sub {
  font-size: 1em;
  font-family: serif!important;
}

.latex sup {
  font-size: 0.85em;
  vertical-align: 0.05em;
  margin-left: -0.36em;
  margin-right: -0.05em;
}

img.latex{ 
  width: 3em;
  vertical-align: middle;
}