glslsandbox.com to fragmentarioum NOT work

[AngelTs]

I can't run any shader from glslsandbox.com.
Here is one example:

#ifdef GL_ES
precision mediump float;
#endif

#extension GL_OES_standard_derivatives : enable

uniform float time;
uniform vec2 mouse;
uniform vec2 resolution;

void main( void ) {

vec2 pos = ( gl_FragCoord.xy / resolution.xy );

float color_r = 0.0;		
float color_g = 0.0;		
float color_b = 0.0;		

float dist = (pos[1] - 0.4*sin((pos[0]+time/1.5)*2.0) - 0.5);
dist = abs(dist);
color_r = pow(1.0 - dist, 5.0);
float dist1 = (pos[1] - 0.5*sin((pos[0]+time/1.0)*2.0) - 0.5);
dist1 = abs(dist1);
color_g = pow(1.0 - dist1, 5.0);
float dist2 = (pos[1] - 0.4*sin((pos[0]+time/0.5)*2.0) - 0.5);
dist2 = abs(dist2);
color_b = pow(1.0 - dist2, 5.0);

gl_FragColor = vec4( vec3( color_r, color_g, color_b ), 1.0 );

}

[3Dickulus]

uniform float time;

#include "Progressive2D.frag"

vec3 color( vec2 pos ) {

float color_r = 0.0;
float color_g = 0.0;
float color_b = 0.0;

float dist = (pos[1] - 0.4 * sin((pos[0]+time/1.5) * 2.0) - 0.5);
dist = abs(dist);
color_r = pow(1.0 - dist, 5.0);
float dist1 = (pos[1] - 0.5 * sin((pos[0]+time/1.0) * 2.0) - 0.5);
dist1 = abs(dist1);
color_g = pow(1.0 - dist1, 5.0);
float dist2 = (pos[1] - 0.4 * sin((pos[0]+time/0.5) * 2.0) - 0.5);
dist2 = abs(dist2);
color_b = pow(1.0 - dist2, 5.0);

return vec3( color_r, color_g, color_b );

}

// image is when time == 0

[AngelTs]

Can you sow me where exactly you put the code in Mandelbub.frag source because i can't start code it. For begininer this system is horrible.

[3Dickulus]

the code I posted is complete, it does not go in mandelbulb.frag, it is a frag on it's own without any more code.
in Fragmentarium select File->New from the menu, then paste the above code where it says "// Write fragment code here..." and press the Build button

[AngelTs]

3Dickulus, thank you so much for your fast and clear support. Now I made it!
But is it true that examples from glslsandbox.com and shadertoy.com can't direct copy-paste-build in fragmentarium ( I see you changed some lines of codes?)