How to Create Awesome Shadow Effects Using HAML (HTML Processor) and LESS CSS (Preprocessor)

HAML Code

%h1.elegantshadow Elegant Shadow
%h1.deepshadow Deep Shadow
%h1.insetshadow Inset Shadow
%h1.retroshadow Retro Shadow

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LESS CSS Code

/*CSS RESET 2.0  */
html,body,div,span,applet,object,iframe,h1,h2,h3,h4,h5,h6,p,blockquote,pre,a,abbr,acronym,address,big,cite,code,del,dfn,em,img,ins,kbd,q,s,samp,small,strike,strong,sub,sup,tt,var,b,u,i,center,dl,dt,dd,ol,ul,li,fieldset,form,label,legend,table,caption,tbody,tfoot,thead,tr,th,td,article,aside,canvas,details,embed,figure,figcaption,footer,header,hgroup,menu,nav,output,ruby,section,summary,time,mark,audio,video{margin:0;padding:0;border:0;font-size:100%;font:inherit;vertical-align:baseline}article,aside,details,figcaption,figure,footer,header,hgroup,menu,nav,section{display:block}body{line-height:1}ol,ul{list-style:none}blockquote,q{quotes:none}blockquote:before,blockquote:after,q:before,q:after{content:'';content:none}table{border-collapse:collapse;border-spacing:0}

h1 {
font-family: "Avant Garde", Avantgarde, "Century Gothic", CenturyGothic, "AppleGothic", sans-serif;
font-size: 92px;
padding: 80px 50px;
text-align: center;
text-transform: uppercase;
text-rendering: optimizeLegibility;

&.elegantshadow {
color: #131313;
background-color: #e7e5e4;
letter-spacing: .15em;
text-shadow:
1px -1px 0 #767676,
-1px 2px 1px #737272,
-2px 4px 1px #767474,
-3px 6px 1px #787777,
-4px 8px 1px #7b7a7a,
-5px 10px 1px #7f7d7d,
-6px 12px 1px #828181,
-7px 14px 1px #868585,
-8px 16px 1px #8b8a89,
-9px 18px 1px #8f8e8d,
-10px 20px 1px #949392,
-11px 22px 1px #999897,
-12px 24px 1px #9e9c9c,
-13px 26px 1px #a3a1a1,
-14px 28px 1px #a8a6a6,
-15px 30px 1px #adabab,
-16px 32px 1px #b2b1b0,
-17px 34px 1px #b7b6b5,
-18px 36px 1px #bcbbba,
-19px 38px 1px #c1bfbf,
-20px 40px 1px #c6c4c4,
-21px 42px 1px #cbc9c8,
-22px 44px 1px #cfcdcd,
-23px 46px 1px #d4d2d1,
-24px 48px 1px #d8d6d5,
-25px 50px 1px #dbdad9,
-26px 52px 1px #dfdddc,
-27px 54px 1px #e2e0df,
-28px 56px 1px #e4e3e2;
}
&.deepshadow {
color: #e0dfdc;
background-color: #333;
letter-spacing: .1em;
text-shadow:
0 -1px 0 #fff,
0 1px 0 #2e2e2e,
0 2px 0 #2c2c2c,
0 3px 0 #2a2a2a,
0 4px 0 #282828,
0 5px 0 #262626,
0 6px 0 #242424,
0 7px 0 #222,
0 8px 0 #202020,
0 9px 0 #1e1e1e,
0 10px 0 #1c1c1c,
0 11px 0 #1a1a1a,
0 12px 0 #181818,
0 13px 0 #161616,
0 14px 0 #141414,
0 15px 0 #121212,
0 22px 30px rgba(0, 0, 0, 0.9);
}
&.insetshadow {
color: #202020;
background-color: #2d2d2d;
letter-spacing: .1em;
text-shadow:
-1px -1px 1px #111,
2px 2px 1px #363636;
}
&.retroshadow {
color: #2c2c2c;
background-color: #d5d5d5;
letter-spacing: .05em;
text-shadow:
4px 4px 0px #d5d5d5,
7px 7px 0px rgba(0, 0, 0, 0.2);
}
}

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Using Prefixfree To Optimize Effect

/**
* StyleFix 1.0.3 & PrefixFree 1.0.7
* @author Lea Verou
* MIT license
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Result:

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Terms:
  1. HAML and LESS CSS
  2. Shadow Effect Using HAML and LESS CSS