Template:3-bit Walsh permutation/matrix columns/style.css

table#matrix-columns-28x6 th.border, td.border {border-left: 2px solid #a2a9b1;}
table#matrix-columns-28x6 th.triple, th.arrows {font-weight: normal;}
table#matrix-columns-28x6 span.sum {font-size: 90%; opacity: .5; display: block;}
table#matrix-columns-28x6 span.sum::before {content: "(";}
table#matrix-columns-28x6 span.sum::after {content: ")";}
table#matrix-columns-28x6 td.comp small {font-size: 60%; color: gray; display: block;}