wizard: img url -> img (width 100%)

document.body.innerHTML="";
var t=document.createElement("input");t.type="text";t.style.width="500px";document.body.appendChild(t);
var p=document.createElement("pre");document.body.appendChild(p);
t.oninput=function(){p.innerText='<img src="'+t.value+'" alt="" width="100%"/>' }

//t.onpaste=