a {
    prop1: func(1px,1px,1px,func(1px,1px,1px,func(1px,1px,1px)));
    prop2: func( 1px ,1px ,1px ,func( 1px ,1px ,1px ,func( 1px ,1px ,1px ) ) );
    prop3: func(1px, 1px, 1px, func(1px, 1px, 1px, func(1px, 1px, 1px)));
    prop4: func( 1px , 1px , 1px , func( 1px , 1px , 1px , func( 1px , 1px , 1px ) ) );
    prop5: func(  1px  ,  1px  ,  1px  ,  func(  1px  ,  1px  ,  1px  ,  func(  1px  ,  1px  ,  1px  )  )  );
    prop6: func(
        1px
        ,
        1px
        ,
        1px
        ,
        func(
            1px
            ,
            1px
            ,
            1px
            ,
            func(
                1px
                ,
                1px
                ,
                1px
            )
        )
    );
    prop7:
        func(
            1px
            ,
            1px
            ,
            1px
            ,
            func(
                1px
                ,
                1px
                ,
                1px
                ,
                func(
                    1px
                    ,
                    1px
                    ,
                    1px
                )
            )
        );
    prop8: very-very-very-very-very-very-vey-very-very-long-func(1px,1px,1px,very-very-very-very-very-very-vey-very-very-long-func(1px,1px,1px,very-very-very-very-very-very-vey-very-very-long-func(1px,1px,1px)));
    prop9: very-very-very-very-very-very-vey-very-very-long-func(  1px  ,  1px  ,  1px  ,  very-very-very-very-very-very-vey-very-very-long-func(  1px  ,  1px  ,  1px  ,  very-very-very-very-very-very-vey-very-very-long-func(  1px  ,  1px  ,  1px  )  )  );
    prop10:
        very-very-very-very-very-very-vey-very-very-long-func(
            1px
            ,
            1px
            ,
            1px
            ,
            very-very-very-very-very-very-vey-very-very-long-func(
                1px
                ,
                1px
                ,
                1px,
                very-very-very-very-very-very-vey-very-very-long-func(
                    1px
                    ,
                    1px
                    ,
                    1px
                )
            )
        );
    prop11: very-very-very-very-very-very-vey-very-very-long-func(
        1px
        ,
        1px
        ,
        1px
        ,
        very-very-very-very-very-very-vey-very-very-long-func(
            1px
            ,
            1px
            ,
            1px,
            very-very-very-very-very-very-vey-very-very-long-func(
                1px
                ,
                1px
                ,
                1px
            )
        )
    );
}

.foo {
  --paddingC: calc(  var(  --widthB  )  /  2  );
  content: attr(  data-title  );
  color: var(  --main-bg-color  );
  background-color: rgb(  255,  0,  0  );
  background: element(  #css-source  );
  padding-top: var(  --paddingC  );
  margin: 1*1 (1)*1 1*(1) (1)*(1);
  prop: -1*-1 -(-1)*-1 -1*-(-1) -(-1)*-(-1);
  prop4: +1;
  prop5: -1;
  prop6: word + 1; /* word1 */
  prop7: word - 1; /* word-1 */
  prop8: +1 +1 +1 +1; /* +1 +1 +1 +1 */
  prop9: -1 -1 -1 -1; /* -1 -1 -1 -1 */
  prop10: (-1);
  prop11: (+1);
  prop12: 10px/8px;
  prop13: round(1.5)/2 round(1.5) /2 round(1.5)/ 2 round(1.5) / 2;
  prop14: 2/round(1.5) 2 /round(1.5) 2/ round(1.5) 2 / round(1.5);
  prop15: (round(1.5)/2) (round(1.5) /2) (round(1.5)/ 2) (round(1.5) / 2);
  prop16: (2/round(1.5)) (2 /round(1.5)) (2/ round(1.5)) (2 / round(1.5));
  prop26: 8px/2px 8px /1 1/ 2px 1 / 2;
  prop27: 8px/2px 8px/1 1/2px 1/2;
  prop28: 8px / 2px 8px / 1 1 / 2px 1 / 2;
  prop29: (8px/2px) (8px/1) (1/2px) (1/2);
  prop30: (8px / 2px) (8px / 1) (1 / 2px) (1 / 2);
  prop32: func(8px/2);
  prop33: 5px + 8px/2px;
  prop34: func(+20px, + 20px);
  prop35: 1+1+1+1;
  prop36: 1 + 1 + 1 + 1;
  prop37: 1 +1 1 +1;
  prop38: ++1;
  prop39: ++(1);
  prop40: --1;
  prop41: --(1);
  prop42: 1px+1px+1px+1px;
  prop43: 1px + 1px + 1px + 1px;
  prop44: -1+-1 -(-1)+-1 -1+-(-1) -(-1)+-(-1);
  prop45: round(1.5)*2 round(1.5) *2 round(1.5)* 2 round(1.5) * 2;
  prop46: 2*round(1.5) 2 *round(1.5) 2* round(1.5) 2 * round(1.5);
  prop47: (round(1.5)*2) (round(1.5) *2) (round(1.5)* 2) (round(1.5) * 2);
  prop48: (2*round(1.5)) (2 *round(1.5)) (2* round(1.5)) (2 * round(1.5));
  prop57: round(1.5)+2 round(1.5) +2 round(1.5)+ 2 round(1.5) + 2;
  prop58: 2+round(1.5) 2 +round(1.5) 2+ round(1.5) 2 + round(1.5);
  prop59: (round(1.5)+2) (round(1.5) +2) (round(1.5)+ 2) (round(1.5) + 2);
  prop60: (2+round(1.5)) (2 +round(1.5)) (2+ round(1.5)) (2 + round(1.5));
  prop69: "test"+1 "test" +1 "test"+ 1 "test" + 1;
  prop70: 1+"test" 1 +"test" 1+ "test" 1 + "test";
  prop71: "test"-1 "test" -1 "test"- 1 "test" - 1;
  prop72: 1-"test" 1 -"test" 1- "test" 1 - "test";
  prop73: calc(100%*2px) calc(100% *2px) calc(100%* 2px) calc(100% * 2px);
  prop74: calc(100%/2px) calc(100% /2px) calc(100%/ 2px) calc(100% / 2px);
  prop75: calc(100%+2px) calc(100% +2px) calc(100%+ 2px) calc(100% + 2px);
  prop76: calc(100%-2px) calc(100% -2px) calc(100%- 2px) calc(100% - 2px);
  prop77: calc(-5px);
  prop78: calc(+5px);
  prop79: calc(-100px + 100px);
  prop80: calc(+100px + 100px);
  prop81: calc(100px  -  100px);
  prop82: calc(100px  +  100px);
}

.bar {
    prop1: attr(data-foo);
    prop2: attr( data-foo );
    prop3: attr(  data-foo  );
    prop4: attr(
        data-foo
    );
    prop5: attr(
        data-foo
    );
    prop6:
        attr(data-foo);
    prop7:
        attr(
            data-foo
        );
    prop8:
    attr(
    data-foo
    )
    ;
    prop9:"("attr(title)")";
    prop10: "(" attr( title ) ")";
    prop11:  "("  attr(  title  )  ")";
    prop12: "("
        attr(title)
    ")";
    prop13:
        "("
        attr(title)
        ")";
    prop14:
        "("
        attr(
            title
        )
        ")";
    prop15:
    "("
    attr(
    title
    )
    ")"
    ;
    prop16: attr(length em);
    prop17: attr(length  em);
    prop18: attr(length   em);
    prop19: attr(
        length
        em
    );
    prop20:attr(data-size em,20);
    prop21: attr( data-size em , 20 );
    prop22:  attr(  data-size  em  ,  20  );
    prop23: attr(
        data-size em,
        20
    );
    prop24:
        attr(
            data-size em,
            20
        );
    prop25:
    attr(
    data-size
    em,
    20
    )
    ;
}

.bar {
    filter: progid:DXImageTransform.Microsoft.gradient(enabled='false',startColorstr='#fff',endColorstr='#000');
    filter: progid:DXImageTransform.Microsoft.Shadow(color='#042b47', Direction=45, Strength=6) progid:DXImageTransform.Microsoft.Shadow(color='#042b47', Direction=135, Strength=6);
    -ms-filter: "progid:DXImageTransform.Microsoft.gradient(startColorstr=#fad59f, endColorstr=#fa9907)";
}

.unicode-ranges
{
    /* <unicode-range> values */
    unicode-range: U+26;               /* single codepoint */
    unicode-range: U+0-7F;
    unicode-range: U+0025-00FF;        /* codepoint range */
    unicode-range: U+4??;              /* wildcard range */
    unicode-range: U+0025-00FF, U+4??; /* multiple values */
}