yosys/docs/source/_static/custom.css

/* Reduce whitespace in cmd def pages */
.cmd.def .highlight-yoscrypt, .cmd.def .highlight pre {
    padding: 0%;
    margin: 0%;
}

.cmd.def .highlight-none, .cmd.def .highlight pre {
    padding-top: 0%;
    margin-top: 0%;
}

/* Make images full width */
.width-helper {
    max-width: 100%;
}

/* Prevent code block caption text from bunching into the caption number */
.literal-block-wrapper .code-block-caption .caption-number {
    padding-right: 0.5em
}