iframe
.text-bold{
border:1px solid orange;
background-color:#ccc;
width:16px;
height:16px;
font-weight:bold;
cursor:pointer;
}
.active{
border-color:#9DAECD #E8F1FF #E8F1FF #9DAECD;
background-color:yellow;
}
function init( ) {
iframe = document.createElement("iframe");
document.body.appendChild(iframe);
iframe.onload = setIframeEditable;
isBold=false;
div=document.getElementById("bold");
}
var setIframeEditable = function(){
iframe.contentDocument.designMode='on';
iframe.focus();
}
function makeBold(){
if(!isBold){
//console.log(iframe.contentDocument.execCommand("bold", false, null));
iframe.contentDocument.execCommand("bold", false, null);
div.className += " active";
isBold=true;
iframe.focus();
}else{
//console.log(iframe.contentDocument.execCommand("bold", true, null));
iframe.contentDocument.execCommand("bold", false, null);
div.className ="text-bold";
isBold=false
iframe.focus();
}
}
</script>
</head>
<body onload="init()">
<div id="bold" class="text-bold" onclick="makeBold()">B</div>
</body>
