jQuery表单输入框焦点效果

By柏小白

jQuery表单输入框焦点效果

//聚焦型验证
$("#focus .inputText").each(function() {
    $(this).focus(function() {
        $(this).siblings("span").hide();
    }).blur(function() {
        if ($(this).val() == "") {
            $(this).siblings("span").show();
        } else {
            $(this).siblings("span").hide();
        }
    })
})
 
//输入型验证
$("#keydown .inputText").each(function() {
    $(this).keydown(function() {
        $(this).siblings("span").hide();
    }).blur(function() {
        if ($(this).val() == "") {
            $(this).siblings("span").show();
        } else {
            $(this).siblings("span").hide();
        }
    })
})

CSS代码

body {
    background: #333;
    padding: 0;
    margin: 0;
}
 
#focus, #keydown {
    width: 400px;
    padding: 20px;
    background: #FCF9EF;
    margin: 30px 0 0 30px;
}
 
#focus h2, #keydown h2 {
    font-size: 24px;
    font-family: "微软雅黑";
    color: #b00000;
}
 
#focus label, #keydown label {
    display: block;
    position: relative;
    height: 40px;
    margin-top: 20px;
}
 
#focus span, #keydown span {
    display: block;
    position: absolute;
    top: 0;
    left: 10px;
    height: 40px;
    line-height: 40px;
    font-size: 14px;
    color: #999;
    cursor: text;
}
 
.radius {
    -moz-border-radius: 5px;
    -webkit-border-radius: 5px;
    border-radius: 5px;
}
 
.inputText {
    width: 378px;
    height: 14px;
    padding: 12px 10px;
    border: 1px #ccc solid;
    font-size: 14px;
    color: #333;
    -moz-box-shadow: inset 1px 1px 5px #ddd;
    -webkit-box-shadow: inset 1px 1px 5px #ddd;
    box-shadow: inset 1px 1px 5px #ddd;
}
 
.inputText:focus {
    outline: none;
    border: 1px #B00000 solid;
    -moz-box-shadow: 0 0 4px rgba(255,153,164,0.8);
    -webkit-box-shadow: 0 0 4px rgba(255,153,164,0.8);
    box-shadow: 0 0 4px rgba(255,153,164,0.8);
}

HTML代码

<form class="radius" id="focus">
    <h2>聚焦型提示语消失</h2>
    <label> <span>请输入帐号</span>
        <input type="text" class="inputText radius" />
    </label>
    <label> <span>请输入密码</span>
        <input type="password" class="inputText radius" />
    </label>
</form>
 
<form class="radius" id="keydown">
    <h2>输入型提示语消失</h2>
    <label> <span>请输入帐号</span>
        <input type="text" class="inputText radius" />
    </label>
    <label> <span>请输入密码</span>
        <input type="password" class="inputText radius" />
    </label>
</form>