.MJX_Assistive_MathML { top: 0px; left: 0px; clip: rect(1px, 1px, 1px, 1px); -webkit-user-select: none; position: absolute !important; padding: 1px 0px 0px !important; border: 0px !important; height: 1px !important; width: 1px !important; overflow: hidden !important; display: block !important; }.MJX_Assistive_MathML.MJX_Assistive_MathML_Block { width: 100% !important; }
.t-lines > span * {line-height:1.5em}

.t-lines > span:empty:after { content:none}

.t-lines > span:empty:after { content:''}

.t-lines > span:empty:after { content:' '}

.t-lines > span:empty:after { content:' '}

.t-lines > span:empty:after { content:'   '}

.t-lines > span:empty:after { content:0}

.t-lines > span:empty:after { content:"0"}

.t-lines > span:empty:after { content:"0"}

.t-lines > span:empty:after { content:"0"}

.t-lines > span:empty:after { content:"0"}

.t-lines > span:empty:after { content:"\a0"}