![]() CSS dictates that an imaginary zero width glyph called the “ strut” be included in the calculation. Why? Recall that the line box height is calculated from the maximum ascent and maximum descent of all the glyphs. The astute observer will notice that in the above example the line box height of the middle line on the right is not 50 pixels as one might naturally expect. This is inherited by the child element which is then used in calculating the line box height. ![]() With the ‘line-height’ value of ‘2em’, the computed value is 50px. As the larger font has a size of 50px, the “used” value for ‘line-height’ is 100px (2 times 50px) thus the line box is 100px tall. With the unitless ‘line-height’ value, theĬhild element (second line, span with larger font) inherits the value ‘2’. Right: Same as left but ‘line-height’ value of ‘2em’. Left: Text with a font size of 25 pixels and with a ‘line-height’ value of ‘2’. This gives different results for values with units compared to those without as seen in the following figure: The importance of this is that it is the computed value of ‘line-height’ that is inherited by child elements. ‘line-height:1.5′ computed value: 1.5, used value: 36px ‘line-height: 36px’ computed and used values: 36px ‘line-height: 150%’ computed and used values: 36px ‘line-height: 1.5em’ computed and used values: 36px. ![]() The actual value “used” for determining line box height is for a unitless value, the computed value multiplied by the font size, while for the values with units it is the “absolute value” For example, assuming a font size of 24px: The “computed” value of a unitless value is the unitless value while the “computed” value of a value with units is the “absolute” value. ) and relative (‘em’, ‘ex’, ‘%’) units are also allowed. So far, we’ve discussed only ‘line-height’ values that are unitless. Notice how the line boxes (red dashed rectangles) are lined up on a grid but that the baselines (light-blue lines) on the right are not the middle right line’s baseline is off the grid. Right: Same as left but font size of 50px for middle line. SVG Buttons in HTML ( or SVG Integration in HTML)įedora 9 on a Dell Inspiron 9200 Notebook SVGĬSS3 Transforms and Animation Experiments SVG Working Group Meeting Report – Rigi KaltbadĪ Spinning Newspaper or a Study of HTML vs. Inkscape and Font Faces, a drama featuring SVG, Pango, and others. SVG Working Group Meeting Report - Londonīlending coming to an SVG renderer near you! (Including Inkscape)įlowed text in SVG: One step forward, one step back. SVG Working Group Meeting Report - Santa Clara (TPAC)ĭescending into the bowels of Inkscape code SVG Working Group Meeting Report - Sydney SVG Mesh Gradients, Heat Maps, and a Plea SVG Working Group Meeting Report - Sydney - 2016 SVG Working Group Editor’s Meeting Report - London - 2016
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