Template:IPA vowel chart/styles.css

table.IPA-vowel-chart .openness-row { height: 3em; }

table.IPA-vowel-chart .backness-column { text-align: center; min-width: 10em; }

table.IPA-vowel-chart .content-outer { display: inline-block; top: 0; left: 0; width: 100%; height: 100%; overflow: visible; box-sizing: border-box; padding: 1em 3em 1.5em; }

table.IPA-vowel-chart .trapezoid { position: absolute; display: inline-block; top: 0; left: 0; bottom: 0; right: 0; margin: -1em -3em -1.5em; opacity: 0.125; /* background. */	background-image: url("//upload.wikimedia.org/wikipedia/commons/thumb/4/4f/Blank_vowel_trapezoid.svg/600px-Blank_vowel_trapezoid.svg.png"); background-position: center center; background-size: 100% 100%, auto; background-repeat: no-repeat; }

table.IPA-vowel-chart .content-inner { position: relative; display: inline-block; z-index: 10; }

table.IPA-vowel-chart .content-filler { display: inline-block; width: 25em; height: 19em; }