HTML、JS、CSS之特殊字符

可能这是冷知识了，并不为多数人知道像HTML、JS、CSS它们的特殊字符的写法，我也是在网上收录的在这里make一下：

箭头类

符号	UNICODE			符号	UNICODE
	HTML	JS	CSS		HTML	JS	CSS
⇠	&#8672	u21E0	21E0	⇢	&#8674	u21E2	21E2
⇡	&#8673	u21E1	21E1	⇣	&#8675	u21E3	21E3
↞	&#8606	u219E	219E	↠	&#8608	u21A0	21A0
↟	&#8607	u219F	219F	↡	&#8609	u21A1	21A1
←	&#8592	u2190	2190	→	&#8594	u2192	2192
↑	&#8593	u2191	2191	↓	&#8595	u2193	2193
↔	&#8596	u2194	2194	↕	&#8597	u2195	2195
⇄	&#8644	u21C4	21C4	⇅	&#8645	u21C5	21C5
↢	&#8610	u21A2	21A2	↣	&#8611	u21A3	21A3
⇞	&#8670	u21DE	21DE	⇟	&#8671	u21DF	21DF
↫	&#8619	u21AB	21AB	↬	&#8620	u21AC	21AC
⇜	&#8668	u21DC	21DC	⇝	&#8669	u21DD	21DD
↚	&#8602	u219A	219A	↛	&#8603	u219B	219B
↮	&#8622	u21AE	21AE	↭	&#8621	u21AD	21AD
⇦	&#8678	u21E6	21E6	⇨	&#8680	u21E8	21E8
⇧	&#8679	u21E7	21E7	⇩	&#8681	u21E9	21E9
▲	&#9650	u25B2	25B2	►	&#9658	u25BA	25BA
▼	&#9660	u25BC	25BC	◄	&#9668	u25C4	25C4
➔	&#10132	u2794	2794	➙	&#10137	u2799	2799
➨	&#10152	u27A8	27A8	➲	&#10162	u27B2	27B2
➜	&#10140	u279C	279C	➞	&#10142	u279E	279E
➟	&#10143	u279F	279F	➠	&#10144	u27A0	27A0
➤	&#10148	u27A4	27A4	➥	&#10149	u27A5	27A5
➦	&#10150	u27A6	27A6	➧	&#10151	u27A7	27A7
➵	&#10165	u27B5	27B5	➸	&#10168	u27B8	27B8
➼	&#10172	u27BC	27BC	➽	&#10173	u27BD	27BD
➺	&#10170	u27BA	27BA	➳	&#10163	u27B3	27B3
↷	&#8631	u21B7	21B7	↶	&#8630	u21B6	21B6
↻	&#8635	u21BB	21BB	↺	&#8634	u21BA	21BA
↵	&#8629	u21B5	21B5	↯	&#8623	u21AF	21AF

基本形状类

符号	UNICODE			符号	UNICODE
	HTML	JS	CSS		HTML	JS	CSS
❤	&#10084	u2764	2764	✈	&#9992	u2708	2708
★	&#9733	u2605	2605	✦	&#10022	u2726	2726
☀	&#9728	u2600	2600	◆	&#9670	u25C6	25C6
◈	&#9672	u25C8	25C8	▣	&#9635	u25A3	25A3
☻	&#9787	u263B	263B	☺	&#9786	u263A	263A
☹	&#9785	u2639	2639	✉	&#9993	u2709	2709
☎	&#9742	u260E	260E	☏	&#9743	u260F	260F
✆	&#9990	u2706	2706	�	&#65533	uFFFD	FFFD
☁	&#9729	u2601	2601	☂	&#9730	u2602	2602
❄	&#10052	u2744	2744	☃	&#9731	u2603	2603
❈	&#10056	u2748	2748	✿	&#10047	u273F	273F
❀	&#10048	u2740	2740	❁	&#10049	u2741	2741
☘	&#9752	u2618	2618	❦	&#10086	u2766	2766
☕	&#9749	u9749	9749	❂	&#10050	u2742	2742
☥	&#9765	u2625	2625	☮	&#9774	u262E	262E
☯	&#9775	u262F	262F	☪	&#9770	u262A	262A
☤	&#9764	u2624	2624	✄	&#9988	u2704	2704
✂	&#9986	u2702	2702	☸	&#9784	u2638	2638
⚓	&#9875	u2693	2693	☣	&#9763	u2623	2623
⚠	&#9888	u26A0	26A0	⚡	&#9889	u26A1	26A1
☢	&#9762	u2622	2622	♻	&#9851	u267B	267B
♿	&#9855	u267F	267F	☠	&#9760	u2620	2620

对错号

符号	UNICODE			符号	UNICODE
	HTML	JS	CSS		HTML	JS	CSS
	&#160	u00A0	0A0	☐	&#9744	u2610	2610
☑	&#9745	u2611	2611	☒	&#9746	u2612	2612
✓	&#10003	u2713	2713	✔	&#10004	u2714	2714
✕	&#10005	u10005	10005	✖	&#10006	u2716	2716
✗	&#10007	u2717	2717	✘	&#10008	u2718	2718

星星：

符号	UNICODE			符号	UNICODE
	HTML	JS	CSS		HTML	JS	CSS
★	&#9733	u2605	2605	✭	&#10029	u272D	272D
✮	&#10030	u272E	272E	☆	&#9734	u2606	2606
✪	&#10026	u272A	272A	✡	&#10017	u2721	2721
✯	&#10031	u272F	272F	✵	&#10037	u2735	2735
✶	&#10038	u2736	2736	✸	&#10040	u2738	2738
✹	&#10041	u2739	2739	✺	&#10042	u273A	273A
✱	&#10033	u2731	2731	✲	&#10034	u2732	2732
✴	&#10036	u2734	2734	✳	&#10035	u2733	2733
✻	&#10043	u273B	273B	✽	&#10045	u273D	273D
❋	&#10059	u274B	274B	❆	&#10054	u2746	2746
❄	&#10052	u2744	2744	❅	&#10053	u2745	2745