Vector Markup Language MHT). Such files retain complete vector information, and can be reopened for editing using other Microsoft applications, such as Microsoft PowerPoint. VML was natively supported by Microsoft's Internet Explorer up to version 9 inline within HTML, using an undefined version of SGML namespaces. Support for VML was dropped in Internet Explorer 10 and subsequent versions. Support for "ink annotations" in Office Open XML files was added to LibreOffice during the 3.7 development cycle. VML is not natively supported by most web browsers. Web browsers such as Mozilla Firefox, Opera, Safari or Google Chrome support SVG instead of VML. Though VML
Web typography SVGOpenTypeFonts. Firefox has supported SVG OpenType since Firefox 26. Linking to industry-standard "TrueType" (TTF) and "OpenType" (TTF/OTF) fonts is supported by Mozilla Firefox 3.5+, Opera 10+, Safari 3.1+, and Google Chrome 4.0+. Internet Explorer 9+ supports only those fonts with embedding permissions set to installable. The Web Open Font Format (WOFF) is essentially OpenType or TrueType with compression and additional metadata. WOFF is supported by Mozilla Firefox 3.6+, Google Chrome 5+, Opera Presto, and is supported by Internet Explorer 9 (since March 14, 2011). Support is available on Mac OS X Lion's Safari from release 5.1. Only two fonts available