mathCSS = html`
<style>
.theorem, .definition {
/* border */
border: 1px black solid;
padding: 2px 16px 2px 12px;
border-radius: 12px;
/* text */
color: white;
text-shadow: 0px 0px 6px #000;
}
.theorem {
/* gradient */
background: #E723C7;
background: -moz-linear-gradient(45deg, #E723C7 0%, #A8189E 38%, #7E0BCB 100%);
background: -webkit-linear-gradient(45deg, #E723C7 0%, #A8189E 38%, #7E0BCB 100%);
background: linear-gradient(45deg, #E723C7 0%, #A8189E 38%, #7E0BCB 100%);
}
.definition {
/* gradient */
background: #56BCE7;
background: -moz-linear-gradient(45deg, #56BCE7 0%, #3B72E0 38%, #0910CB 100%);
background: -webkit-linear-gradient(45deg, #56BCE7 0%, #3B72E0 38%, #0910CB 100%);
background: linear-gradient(45deg, #56BCE7 0%, #3B72E0 38%, #0910CB 100%);
}
.boxed {
/* border */
border: 1px black solid;
padding: 6px 24px;
border-radius: 8px;
/* background */
background: #FFFCD7;
}
</style>
`