-.playing, button.playing:hover
- background-color: #ffcc99
-
-.seek, button.seek:hover
- background-color: #cc99ff
-
-figure.diagram-container
- margin: 15px 0 15px 0
- text-align: center
- width: 100%
- display: block
-
-// https://stackoverflow.com/questions/5445491/height-equal-to-dynamic-width-css-fluid-layout
-figure.diagram-container > .diagram
- display: block
- width: 40%
- min-width: 300px
- max-width: 800px
- margin-left: auto
- margin-right: auto
-
-figure.diagram-container > .diagram2
- display: block
- float: left
- width: 40%
- min-width: 300px
- max-width: 800px
- margin-right: 40px