body    {background-color:#000}  
section {margin: 0}
div     {margin: 0} 
p       {margin:0} 
canvas  {border: 0px solid #000; background-color: #fff1}
 
:root {--view_sec_width:       100%; --view_sec_height:        0%;
       --svg_div_width:        100%; --svg_div_height:         0%}
 
 .view_sec       {padding:0px 0px 0px 0px; height:var(--view_sec_height);width:var(--view_sec_width); color:#bbb; background-color: #000}
 .svg_div        {padding:0px 0px 0px 0px; height:var(--svg_div_height); width:var(--svg_div_width); color:#bbb; background-color: #000}
 .canvas_div     {width:1; height:1; position: absolute; left:0; top:0; margin-left:0px}