.b-ext h1.has-background, .b-ext h2.has-background, .b-ext h3.has-background, .b-ext h4.has-background, .b-ext h5.has-background, .b-ext h6.has-background {padding: 1.25em 2.375em;}
.b-ext h1.has-text-align-left[style*=writing-mode]:where([style*=vertical-lr]), .b-ext h1.has-text-align-right[style*=writing-mode]:where([style*=vertical-rl]), .b-ext h2.has-text-align-left[style*=writing-mode]:where([style*=vertical-lr]), .b-ext h2.has-text-align-right[style*=writing-mode]:where([style*=vertical-rl]), .b-ext h3.has-text-align-left[style*=writing-mode]:where([style*=vertical-lr]), .b-ext h3.has-text-align-right[style*=writing-mode]:where([style*=vertical-rl]), .b-ext h4.has-text-align-left[style*=writing-mode]:where([style*=vertical-lr]), .b-ext h4.has-text-align-right[style*=writing-mode]:where([style*=vertical-rl]), .b-ext h5.has-text-align-left[style*=writing-mode]:where([style*=vertical-lr]), .b-ext h5.has-text-align-right[style*=writing-mode]:where([style*=vertical-rl]), .b-ext h6.has-text-align-left[style*=writing-mode]:where([style*=vertical-lr]), .b-ext h6.has-text-align-right[style*=writing-mode]:where([style*=vertical-rl]) {rotate: 180deg;}