我输入标签有问题并标记其浮动。一切正常读取,但是当我在输入中插入一个模式时,如果这个模式不满足效果浮动没有实现,并且文本输入与标签重叠。我希望我很清楚,对不起我的英语。
这是css
.card .input-container {
position: relative;
margin: 0 60px 50px;
}
.card .input-container input {
outline: none;
z-index: 1;
position: relative;
background: none;
width: 100%;
height: 60px;
border: 0;
color: #212121;
font-size: 24px;
font-weight: 400;
}
.card .input-container input:focus ~ label {
color: #9d9d9d;
-webkit-transform: translate(-12%, -50%) scale(0.75);
transform: translate(-12%, -50%) scale(0.75);
}
.card .input-container input:focus ~ .bar:before, .card .input-container input:focus ~ .bar:after {
width: 50%;
}
.card .input-container input:valid ~ label {
color: #9d9d9d;
-webkit-transform: translate(-12%, -50%) scale(0.75);
transform: translate(-12%, -50%) scale(0.75);
}
.card .input-container label {
position: absolute;
top: 0;
left: 0;
color: #757575;
font-size: 24px;
font-weight: 300;
line-height: 60px;
-webkit-transition: 0.2s ease;
transition: 0.2s ease;
}
.card .input-container .bar {
position: absolute;
left: 0;
bottom: 0;
background: #757575;
width: 100%;
height: 1px;
}
.card .input-container .bar:before, .card .input-container .bar:after {
content: '';
position: absolute;
background: #ed2553;
width: 0;
height: 2px;
-webkit-transition: .2s ease;
transition: .2s ease;
}
.card .input-container .bar:before {
left: 50%;
}
.card .input-container .bar:after {
right: 50%;
}
<div class="card">
<h1 class="title">Login</h1>
<form>
<div class="input-container">
<input type="text" id="Username" required="required" pattern=".{3,}" title="3 characters minimum" />
<label for="Username">Username</label>
<div class="bar"></div>
</div>
</form>
</div>
答案 0 :(得分:5)
required
。完全删除pattern
并给出类似的内容:
.card .input-container {
position: relative;
margin: 0 60px 50px;
}
.card .input-container input {
outline: none;
z-index: 1;
position: relative;
background: none;
width: 100%;
height: 60px;
border: 0;
color: #212121;
font-size: 24px;
font-weight: 400;
}
.card .input-container input:focus ~ label {
color: #9d9d9d;
-webkit-transform: translate(-12%, -50%) scale(0.75);
transform: translate(-12%, -50%) scale(0.75);
}
.card .input-container input:focus ~ .bar:before, .card .input-container input:focus ~ .bar:after {
width: 50%;
}
.card .input-container input:valid ~ label {
color: #9d9d9d;
-webkit-transform: translate(-12%, -50%) scale(0.75);
transform: translate(-12%, -50%) scale(0.75);
}
.card .input-container label {
position: absolute;
top: 0;
left: 0;
color: #757575;
font-size: 24px;
font-weight: 300;
line-height: 60px;
-webkit-transition: 0.2s ease;
transition: 0.2s ease;
}
.card .input-container .bar {
position: absolute;
left: 0;
bottom: 0;
background: #757575;
width: 100%;
height: 1px;
}
.card .input-container .bar:before, .card .input-container .bar:after {
content: '';
position: absolute;
background: #ed2553;
width: 0;
height: 2px;
-webkit-transition: .2s ease;
transition: .2s ease;
}
.card .input-container .bar:before {
left: 50%;
}
.card .input-container .bar:after {
right: 50%;
}
&#13;
<div class="card">
<h1 class="title">Login</h1>
<form>
<div class="input-container">
<input type="text" id="Username" required="required" title="3 characters minimum" />
<label for="Username">Username</label>
<div class="bar"></div>
</div>
</form>
</div>
&#13;
或者您可以通过使用 JavaScript / jQuery 向input
添加新类来实现动画。一个纯CSS 解决方案可能无法实现。 我说可能不会,因为,我想不出一个。让我们看看其他人是否提出了解决方案。
使用jQuery的替代解决方案:
$(function () {
$("input").keyup(function () {
if ($(this).val().trim().length > 0)
$(this).addClass("non-empty");
else
$(this).removeClass("non-empty");
});
});
&#13;
.card .input-container {
position: relative;
margin: 0 60px 50px;
}
.card .input-container input {
outline: none;
z-index: 1;
position: relative;
background: none;
width: 100%;
height: 60px;
border: 0;
color: #212121;
font-size: 24px;
font-weight: 400;
}
.card .input-container input:focus ~ label {
color: #9d9d9d;
-webkit-transform: translate(-12%, -50%) scale(0.75);
transform: translate(-12%, -50%) scale(0.75);
}
.card .input-container input:focus ~ .bar:before, .card .input-container input:focus ~ .bar:after {
width: 50%;
}
.card .input-container input.non-empty ~ label {
color: #9d9d9d;
-webkit-transform: translate(-12%, -50%) scale(0.75);
transform: translate(-12%, -50%) scale(0.75);
}
.card .input-container label {
position: absolute;
top: 0;
left: 0;
color: #757575;
font-size: 24px;
font-weight: 300;
line-height: 60px;
-webkit-transition: 0.2s ease;
transition: 0.2s ease;
}
.card .input-container .bar {
position: absolute;
left: 0;
bottom: 0;
background: #757575;
width: 100%;
height: 1px;
}
.card .input-container .bar:before, .card .input-container .bar:after {
content: '';
position: absolute;
background: #ed2553;
width: 0;
height: 2px;
-webkit-transition: .2s ease;
transition: .2s ease;
}
.card .input-container .bar:before {
left: 50%;
}
.card .input-container .bar:after {
right: 50%;
}
&#13;
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<div class="card">
<h1 class="title">Login</h1>
<form>
<div class="input-container">
<input type="text" id="Username" required="required" pattern=".{3,}" title="3 characters minimum" />
<label for="Username">Username</label>
<div class="bar"></div>
</div>
</form>
</div>
&#13;