onblur='if(this.value==""){this.value="请输入关键字进行搜索";}; this.className="input02"'> 1. 2. 3. 2.也可以使用jquery实现: $(document).ready(function() { var vdefault = $('#keyword').val(); $('#keyword').focus(function() { //获得焦点时,如果值为默认值,则设置为空 if (...
CSS: html,body { margin: 0; padding: 0; height: 100%; width: 100%; } .container { height: 100%; width: 100%; background-color: lightblue; display: flex; justify-content: center; align-items: center; } .code { width: 5%; margin: 20px; position: relative; } .code::after { c...
Gets or sets the control on the form to display as the control with input focus when the HtmlForm control is loaded. C# 复制 public string DefaultFocus { get; set; } Property Value String The ClientID of the control on the form to display as the control with input focus when the ...
input[type=email]:hover, input[type=text]:hover, input[type=number]:hover, textarea:hover{ border-color:#444444; } input[type=email]:focus, input[type=text]:focus, input[type=number]:focus, textarea:focus{ border-color:#2491eb; outline:1pxsolid#2491eb; } textarea{ line-height:1.5;...
input.focus()consttextarea =document.querySelector('textarea') textarea.focus()</script> input: textarea: 这样的效果当然不是我们想要的 解决方案 省流:该方法的两个参数均为-1即可:input.setSelectionRange(-1, -1) 当然也有相应的解决方法,那就是setSelectionRange方法 ...
Input Text 对象 实例 文本域获取焦点: document.getElementById("myText").focus(); 尝试一下 » 定义和用法 focus() 方法用于文本域获取焦点。 提示:使用blur()方法让文本域失去焦点。 浏览器支持 所有主流浏览器都支持 focus() 方法。 语法 textObject.focus() ...
Let the "First name" input field automatically get focus when the page loads: <form action="/action_page.php"> <label for="fname">First name:</label> <input type="text" id="fname" name="fname" autofocus><br><br> <label for="lname">Last name:</label> <input type="text" id...
在input元素中,默认为Email,当focus并键入字符时,'Email'字符消失,当删除字符至空时,‘Email‘字符又再次显示。此处实现html5中placeholder的功能。 效果演示: 代码: <!DOCTYPE html > <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />...
Input Reset focus() Method❮ Input Radio ObjectExampleGive focus to a radio button:document.getElementById("myRadio").focus();Try it Yourself » DescriptionThe focus() method is used to give focus to a radio button.Tip: Use the blur() method to remove focus from a radio button....
input.focus(); input[0].setSelectionRange(len, len); How can I use jQuery to focus on an input field when a link is clicked? You can use theclickevent handler in jQuery to focus on an input field when a link is clicked. Inside theclickevent handler, use thefocusmethod to set the ...