首先把蓝色div设置为相对定位
然后把内部的绿色div设置为绝对定位， bottom: 0表示贴在下面
");
window.frames["iframe_show3093"].document.write(decodeHtml($("textarea#stepcodeTextarea3093").val()));
window.frames["iframe_show3093"].document.close();
$(window.frames["iframe_show3093"]).load(function(){
$("#iframe_show3093").height($("#iframe_show3093").contents().find("body").height()+showittryitheight);
});
$("#iframe_show3093").height($("#iframe_show3093").contents().find("body").height()+showittryitheight);
setTimeout(function(){
},500);
});
<style>
#div1
{
position: relative;
height: 300px;
width: 90%;
background-color: skyblue;
}
#div2
{
position: absolute;
bottom: 0;
height: 30px;
width: 100%;
background-color: lightgreen;
}
</style>
<div id="div1">
<div id="div2"> 无论蓝色div高度如何变化，绿色div都会贴在下面
</div>
</div>
<style>
#div1
{
position: relative;
height: 300px;
width: 90%;
background-color: skyblue;
}
#div2
{
position: absolute;
bottom: 0;
height: 30px;
width: 100%;
background-color: lightgreen;
}
</style>
<div id="div1">
<div id="div2"> 无论蓝色div高度如何变化，绿色div都会贴在下面
</div>
</div>
");
window.frames["iframe3093"].document.write(decodeHtml(code3093));
window.frames["iframe3093"].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["iframe3093"]).load(function(){
$("#iframe3093").height($("#iframe3093").contents().find("body").height()+showittryitheight);
});
$("#iframe3093").height($("#iframe3093").contents().find("body").height()+showittryitheight);
alreadyWriteCode3093 = code3093;
$("#rendering3093").hide();
$("#rendered3093").show();
}
var tRereshRetry2DemoPanel3093 = setInterval(rereshRetry2DemoPanel3093,1000);
var binded3093 = false;
$("textarea#stepcodeTextarea3093").keyup(function(){
if(!binded3093){
$(window).bind('beforeunload',function(){
binded3093 = true;
return "xxxx";
});
}
var newCode = $(this).val()
code3093 = newCode;
/*below code is replaced by function rereshRetry2DemoPanel()*/
// if(code3093!=newCode){
// window.frames["iframe3093"].document.write("
");
// window.frames["iframe3093"].document.write(decodeHtml($("textarea#stepcodeTextarea3093").val()));
// window.frames["iframe3093"].document.close();
// $(window.frames["iframe3093"]).load(function(){
// $("#iframe3093").height($("#iframe3093").contents().find("body").height()+showittryitheight);
// });
// code3093 = newCode;
// }
});
$(".tryButton3093").click(function(){
$("#tryDiv3093").show();
$("#stepcodeTextarea3093").focus();
$("#stepcodeTextarea3093").height(200);
$("#iframe3093").height(0);
window.frames["iframe3093"].document.write("
");
window.frames["iframe3093"].document.write(decodeHtml($("textarea#stepcodeTextarea3093").val()));
window.frames["iframe3093"].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["iframe3093"]).load(function(){
$("#iframe3093").height($("#iframe3093").contents().find("body").height()+showittryitheight);
});
$("#iframe3093").height($("#iframe3093").contents().find("body").height()+showittryitheight);
this.scrollIntoView(true);
editor3093.focus();
editor3093.setSize(null, "250");
$("#rendering3093").hide();
$("#rendered3093").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 editor3093 = CodeMirror.fromTextArea(document.getElementById("stepcodeTextarea3093"), {
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);
}
}
});
editor3093.on("change",function(doc){
if(!binded3093){
$(window).bind('beforeunload',function(){
binded3093 = true;
return "xxxx";
});
}
var newCode = doc.getValue();
code3093 = newCode;
$("textarea#stepcodeTextarea3093").val(newCode);
if(alreadyWriteCode3093!=code3093){
lastModifedTime3093 = new Date().getTime();
$("#rendering3093").show();
$("#rendered3093").hide();
}
// alert(doc.getValue());
});
$(".CodeMirror").addClass("form-control");
// var editor3093 = CodeMirror.fromTextArea(, {
// lineNumbers: true,
// styleActiveLine: true,
// matchBrackets: true,
// theme:"eclipse",
// });
editor3093.on("change",function(doc){
// alert(doc.getValue());
});
$("#tryDiv3093").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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