cssAudio - Activefile-genericCSS - ActiveGeneric - ActiveHTML - ActiveImage - ActiveJS - ActiveSVG - ActiveText - Activefile-genericVideo - ActiveLovehtmlicon-new-collectionicon-personicon-teamlog-outoctocatpop-outspinnerstartv

Pen Settings

CSS Base

Vendor Prefixing

Add External CSS

These stylesheets will be added in this order and before the code you write in the CSS editor. You can also add another Pen here, and it will pull the CSS from it. Try typing "font" or "ribbon" below.

Quick-add: + add another resource

Add External JavaScript

These scripts will run in this order and before the code in the JavaScript editor. You can also link to another Pen here, and it will run the JavaScript from it. Also try typing the name of any popular library.

Quick-add: + add another resource

Code Indentation

     

Save Automatically?

If active, Pens will autosave every 30 seconds after being saved once.

Auto-Updating Preview

If enabled, the preview panel updates automatically as you code. If disabled, use the "Run" button to update.

            
              - var smin = .10, smax = .57, sval = .50;
- var hmin = .05, hmax = .27, hval = .25;

form
	section.wrap(style=`--min:${smin};--max:${smax};--val:${sval}`)
		input#sf(type='range' min=smin max=smax value=sval step=.01)
		label(for='sf') star
	section.wrap(style=`--min:${hmin};--max:${hmax};--val:${hval}`)
		input#hf(type='range' min=hmin max=hmax value=hval step=.01)
		label(for='hf') heart

svg
	path#sg
	path#hg
            
          
!
            
              $demo-lh: 1.25;
$demo-dark: #262626;
$demo-light: invert($demo-dark);
$demo-ll: #555;
$demo-hl: #f90;
$ctrl-pad: .5em;
$ctrl-wmax: 20em;
$ctrl-hmax: 8em;

$lbl-w: 4em;

$thumb-d: 1.25em;
$thumb-r: .5*$thumb-d;

$track-h: 6px;
$track-r: .5*$track-h;
$track-m: calc((100% - #{$thumb-d}));
$track-s: calc(#{$track-m}/var(--range));
$track-x: calc(#{-$track-r} - .5*#{$track-m}/var(--range));

$t: .3s;

@mixin track {
	border: none;
	width: 100%; height: $track-h;
	border-radius: $track-r;
	background: $demo-ll;
}

@mixin thumb {
	box-sizing: border-box;
  border: solid .25*$thumb-d $demo-dark;
	width: $thumb-d; height: $thumb-d;
	border-radius: 50%;
	background: $demo-ll content-box;
	transition: $t;
	transition-property: border-width, background-color
}

@mixin thumb-focus {
	border-width: 0;
	background: $demo-hl
}

* {
	margin: 0;
	font: inherit
}

body {
	display: flex;
	overflow: hidden;
	height: 100vh;
	font: 1.25em/ #{$demo-lh} trebuchet ms, tahoma sans-serif;
	
	@media (max-aspect-ratio: 5/4) {
		flex-direction: column;
		
		form {
			border: solid 0 $demo-dark;
			border-width: 0 calc(50vw - #{$ctrl-wmax});
			width: auto; max-width: 2*$ctrl-wmax;
			
			@media (max-width: 570px) {
				flex-direction: column;
				
				section { width: calc(100% - #{$ctrl-pad}) }
			}
		}
		
		section {
			width: calc(50% - #{$ctrl-pad});
			
			@media (max-width: 380px) {
				flex-direction: column;
				align-items: flex-start;
				
				input { width: 100% }
				
				label { text-align: left; }
			}
		}
	}
}

form {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	border: solid 0 $demo-dark;
	border-width: calc(50vh - #{.5*$ctrl-hmax}) 0;
	padding: $ctrl-pad;
	width: 25%;
	max-width: $ctrl-wmax; max-height: $ctrl-hmax;
	background: $demo-dark;
	color: $demo-light;
}

section {
	--range: calc(var(--max) - var(--min));
	--pos: calc((var(--val) - var(--min))*(100% - #{$thumb-d})/var(--range));
	display: flex;
	align-items: center;
	width: calc(100% - #{2*$ctrl-pad});
}

label {
	width: $lbl-w;
	padding-right: .5em;
	text-align: right;
	
	&:after { content: ':' }
}

[type='range'] {
	&::-webkit-slider-runnable-track, 
	&::-webkit-slider-thumb, & {
		-webkit-appearance: none
	}
	
	flex: 1;
	order: 1;
	min-width: .25*$ctrl-wmax;
	height: 1.5*$thumb-d;
	background: transparent;
	cursor: pointer;
	
	&::-webkit-slider-runnable-track {
		@include track
	}
	
	&::-moz-range-track {
		@include track
	}
	
	&::-ms-track {
		@include track;
		background: $demo-ll;
		color: transparent
	}
	
	&::-ms-fill-lower {
		display: none
	}
	
	&::-webkit-slider-thumb {
		margin-top: calc(#{$track-r} - #{$thumb-r});
		@include thumb
	}
	
	&::-moz-range-thumb {
		@include thumb
	}
	
	&::-ms-thumb {
		margin-top: 0;
		@include thumb;
		border-color: $demo-dark
	}

	&:focus {
		outline: none;
		
		&::-webkit-slider-thumb {
			@include thumb-focus
		}

		&::-moz-range-thumb {
			@include thumb-focus
		}

		&::-ms-thumb {
			@include thumb-focus
		}
	}
}

svg { flex: 1 }

path {
	fill: none;
	stroke-width: 5
}

#sg { stroke: #f90 }

#hg { stroke: #b53 }
            
          
!
            
              const _SVG = document.querySelector('svg'), 
			_SHAPES = {
				s: { el: document.getElementById('sg') }, 
				h: { el: document.getElementById('hg') }
			}, 
			D = 1000 /* viewBox size */,
			O = {} /* data object */,
			/* number of cubic curves/ polygon vertices */
			P = 5;

function getStarPoints(f = .5) {
	const RCO = f*D /* outer (pentagram) circumradius*/, 
				BAS = 2*(2*Math.PI/P) /* base angle for star poly */, 
				BAC = 2*Math.PI/P /* base angle for convex poly */, 
				RI = RCO*Math.cos(.5*BAS) /*pentagram/ inner pentagon inradius */, 
				RCI = RI/Math.cos(.5*BAC) /* inner pentagon circumradius */, 
				ND = 2*P /* total number of distinct points we need to get */, 
				BAD = 2*Math.PI/ND /* base angle for point distribution */, 
				PTS = [] /* array we fill with point coordinates */;

	for(let i = 0; i < ND; i++) {
		let /* radius at end point (inner)/ control point (outer) */
				cr = i%2 ? RCI : RCO, 
				/* angle of radial segment from origin to current point */
				ca = i*BAD + .5*Math.PI, 
				x = Math.round(cr*Math.cos(ca)), 
				y = Math.round(cr*Math.sin(ca));

		PTS.push([x, y]);
		/* for even indices double it, control points coincide here */
		if(!(i%2)) PTS.push([x, y]);
	}

	return PTS
};

function getHeartPoints(f = .25) {
	const R = f*D /* helper circle radius  */, 
				RC = Math.round(R/Math.SQRT2) /* circumradius of square of edge R */, 
				XT = 0, YT = -RC /* coords of point T */, 
				XA = 2*RC, YA = -RC /* coords of A points (x in abs value) */, 
				XB = 2*RC, YB = RC /* coords of B points (x in abs value) */, 
				XC = 0, YC = 3*RC /* coords of point C */, 
				XD = RC, YD = -2*RC /* coords of D points (x in abs value) */, 
				XE = 3*RC, YE = 0 /* coords of E points (x in abs value) */, 
				/* const for cubic curve approx of quarter circle */
				C = .551915, 
        CC = 1 - C, 
        /* coords of ctrl points on TD segs */
				XTD = Math.round(CC*XT + C*XD), YTD = Math.round(CC*YT + C*YD), 
        /* coords of ctrl points on AD segs */
				XAD = Math.round(CC*XA + C*XD), YAD = Math.round(CC*YA + C*YD), 
        /* coords of ctrl points on AE segs */
				XAE = Math.round(CC*XA + C*XE), YAE = Math.round(CC*YA + C*YE), 
        /* coords of ctrl points on BE segs */
				XBE = Math.round(CC*XB + C*XE), YBE = Math.round(CC*YB + C*YE);
	
	return [
		[XC, YC], [XC, YC], [-XB, YB], 
		[-XBE, YBE], [-XAE, YAE], [-XA, YA], 
		[-XAD, YAD], [-XTD, YTD], [XT, YT], 
		[XTD, YTD], [XAD, YAD], [XA, YA], 
		[XAE, YAE], [XBE, YBE], [XB, YB]
	].map(([x, y]) => [x, y - .09*R]);
};

function fnStr(fname, farg) { return `${fname}(${farg})` }

function update(e) {
	const _T = e.target, IDN = _T.id.charAt(0), VAL = +_T.value;
	
	_SHAPES[IDN].wrap.style.setProperty(`--val`, VAL);
	_SHAPES[IDN].el.setAttribute('transform', `scale(${VAL/_SHAPES[IDN].def})`);
};

(function init() {	
	_SVG.setAttribute('viewBox', [-.5*D, -.5*D, D, D].join(' '));
	
	for(let p in _SHAPES) {
		_SHAPES[p].wrap = _SHAPES[p].el.parentNode;
		_SHAPES[p].f = document.getElementById(`${p}f`);
		_SHAPES[p].def = +_SHAPES[p].f.value;
		
		_SHAPES[p].f.addEventListener('input', update, false);
		_SHAPES[p].f.addEventListener('change', update, false);
	}
	
	O.d = {
		s: getStarPoints(), 
		h: getHeartPoints(), 
		afn: function(pts) {
			return pts.reduce((a, c, i) => {
				return a + (i%3 ? ' ' : 'C') + c
			}, `M${pts[pts.length - 1]}`)
		}
	};
	
	for(let p in O) {
		_SHAPES.s.el.setAttribute(p, O[p].afn(O[p].s));
		_SHAPES.h.el.setAttribute(p, O[p].afn(O[p].h));
	}
})();
            
          
!
999px
Loading ..................

Console