Unicode
Unicode is a computing industry standard for encoding, representation and handling of text expressed in most of the world’s writing systems. It has 110,182 graphical, formatting and control characters, covering those languages, as well as, many mathematical, musical and other symbols.
Here are four of the sets of symbols and graphical elements which are included in Unicode and work on all platforms.
Dingbats
✠ ✤ ✱ ✈ ❋
✖✚✖✚✖✚✖✚✖✚✖✚✖✚✖✚✖✚✖✚✖✚✖✚✖✚✖✚✖✚✖✚✖✚✖✚✖✚✖
A border made using the characters #10006 and #10010.
✄ ✄
THE CUT-UPS
A title for a brand.
Miscellaneous symbols
♣ ♨ ★ ♀
★☆★☆★☆★☆★☆★☆★☆★☆★☆★☆★☆★☆★☆★☆★☆★☆★☆★☆★☆
A border made using the characters #9898 and #9899.
▼Lookdown▲Pickup
For social action.
Geometric shapes
▣ □ ◆ ◈
◣◢◤◥◣◢◤◥◣◢◤◥◣◢◤◥◣◢◤◥◣◢◤◥◣◢◤◥◣◢◤◥
A border made using the characters #9699, #9698, #9700 and #9701.
◎eyes◎
A business logo
Block elements
▇ ░ ▌ ▓ ▁
▁▁▄▌▁▁▄▌▁▁▄▌▁▁▄▌▁▁▄▌▁▁▄▌▁▁▄▌▁▁▄▌▁▁▄▌▁▁▄▌
A border made using the characters #9600, #9604 and #96129.
▋▊▉Aroundtheblock
A neighborhood logo
CSS – circle, star and triangle
CSS Specifications – http://www.w3.org/Style/CSS/specs
CSS3 Transforms – http://www.w3.org/TR/css3-3d-transforms/
SVG – Scalable Vector Graphics
Basic shapes – https://svgwg.org/svg2-draft/pservers.html
Color & SVG – http://www.personal.psu.edu/jxm22/svgopen2010/index.html
Circle, square and triangle
Rectangle, star and polygon
Rectangles, circles and color
Here is very small file (1.6k) which show how transparency can be used for delicate and subtle effects in svg files.
Below is another file (2.8k), also repeated three times, which gives an illusion of depth and shows a range of reds.