The method addstyle creates a grid cell in the position where the grid was removed or not created before. The position status can be identified with the method grid. If a grid exists in the position, there will be no grid cell created.
elements - Single grid cell object or array of grid cells.
style - Json format style properties.
var pggrid = new jsgrid();
pggrid.init({
id:"wrp",
rows:5,
columns:12,
width:25,
height:20,
gutter:1,
backgroundColor: "#7fffd4"
});
var grp2 = pggrid.grid([2,3]);
grp2.innerHTML = "2,3";
var grp3 = pggrid.grid([3,2]);
grp3.innerHTML = "3,2";
pggrid.addstyle([grp2,grp3],{backgroundColor:"#ddcc00"});