属性: margin-left
值：数字
指的是元素边框和元素边框之间的距离
注：像span这样的内联元素，默认情况下，只有左右外边距，没有上下外边距。 为了观察上下外边距的效果，可以采用块级元素，比如div.
");
window.frames["iframe_show481"].document.write(decodeHtml($("textarea#stepcodeTextarea481").val()));
window.frames["iframe_show481"].document.close();
$(window.frames["iframe_show481"]).load(function(){
$("#iframe_show481").height($("#iframe_show481").contents().find("body").height()+showittryitheight);
});
$("#iframe_show481").height($("#iframe_show481").contents().find("body").height()+showittryitheight);
setTimeout(function(){
},500);
});
<style>
.red{
border:1px solid red;
background-color:green;
}
.margin{
border:1px solid red;
background-color:green;
margin-left:10px;
}
</style>
<span class="red"> 无外边距的span </span>
<span class="red"> 无外边距的span </span>
<br/>
<span class="red"> 无外边距的span </span>
<span class="margin"> 有左外边距的span </span>
<style>
.red{
border:1px solid red;
background-color:green;
}
.margin{
border:1px solid red;
background-color:green;
margin-left:10px;
}
</style>
<span class="red"> 无外边距的span </span>
<span class="red"> 无外边距的span </span>
<br/>
<span class="red"> 无外边距的span </span>
<span class="margin"> 有左外边距的span </span>
");
window.frames["iframe481"].document.write(decodeHtml(code481));
window.frames["iframe481"].document.close();
//load和下面的非load必需并存，因为如果代码用到了jquery就必须使用load的方式
$(window.frames["iframe481"]).load(function(){
$("#iframe481").height($("#iframe481").contents().find("body").height()+showittryitheight);
});
$("#iframe481").height($("#iframe481").contents().find("body").height()+showittryitheight);
alreadyWriteCode481 = code481;
$("#rendering481").hide();
$("#rendered481").show();
}
var tRereshRetry2DemoPanel481 = setInterval(rereshRetry2DemoPanel481,1000);
var binded481 = false;
$("textarea#stepcodeTextarea481").keyup(function(){
if(!binded481){
$(window).bind('beforeunload',function(){
binded481 = true;
return "xxxx";
});
}
var newCode = $(this).val()
code481 = newCode;
/*below code is replaced by function rereshRetry2DemoPanel()*/
// if(code481!=newCode){
// window.frames["iframe481"].document.write("
");
// window.frames["iframe481"].document.write(decodeHtml($("textarea#stepcodeTextarea481").val()));
// window.frames["iframe481"].document.close();
// $(window.frames["iframe481"]).load(function(){
// $("#iframe481").height($("#iframe481").contents().find("body").height()+showittryitheight);
// });
// code481 = newCode;
// }
});
$(".tryButton481").click(function(){
$("#tryDiv481").show();
$("#stepcodeTextarea481").focus();
$("#stepcodeTextarea481").height(200);
$("#iframe481").height(0);
window.frames["iframe481"].document.write("
");
window.frames["iframe481"].document.write(decodeHtml($("textarea#stepcodeTextarea481").val()));
window.frames["iframe481"].document.close();
//load和下面的非load必需并存，因为如果代码用到了jquery就必须使用load的方式
$(window.frames["iframe481"]).load(function(){
$("#iframe481").height($("#iframe481").contents().find("body").height()+showittryitheight);
});
$("#iframe481").height($("#iframe481").contents().find("body").height()+showittryitheight);
this.scrollIntoView(true);
editor481.focus();
editor481.setSize(null, "250");
$("#rendering481").hide();
$("#rendered481").hide();
});
var mixedMode = {
name: "htmlmixed",
scriptTypes: [{matches: /\/x-handlebars-template|\/x-mustache/i,
mode: null},
{matches: /(text|application)\/(x-)?vb(a|script)/i,
mode: "vbscript"}]
};
var editor481 = CodeMirror.fromTextArea(document.getElementById("stepcodeTextarea481"), {
lineNumbers: true,
styleActiveLine: true,
matchBrackets: true,
mode:"text/html",
theme:"eclipse",
selectionPointer: true,
lineWrapping: true,
extraKeys: {
"Alt-/": "autocomplete",
"Ctrl-F": "findPersistent",
"F8": function(cm) {
cm.setOption("fullScreen", !cm.getOption("fullScreen"));
},
"Esc": function(cm) {
if (cm.getOption("fullScreen")) cm.setOption("fullScreen", false);
}
}
});
editor481.on("change",function(doc){
if(!binded481){
$(window).bind('beforeunload',function(){
binded481 = true;
return "xxxx";
});
}
var newCode = doc.getValue();
code481 = newCode;
$("textarea#stepcodeTextarea481").val(newCode);
if(alreadyWriteCode481!=code481){
lastModifedTime481 = new Date().getTime();
$("#rendering481").show();
$("#rendered481").hide();
}
// alert(doc.getValue());
});
$(".CodeMirror").addClass("form-control");
// var editor481 = CodeMirror.fromTextArea(, {
// lineNumbers: true,
// styleActiveLine: true,
// matchBrackets: true,
// theme:"eclipse",
// });
editor481.on("change",function(doc){
// alert(doc.getValue());
});
$("#tryDiv481").hide();
});
$("div.codemirrorTips span").addClass("glyphicon glyphicon-asterisk");
1. 双击选中单词
2. 三击选中整行
3. CTRL+F 查找
4. F8 全屏编辑，再次点击恢复
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