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社区首页 >问答首页 >如何根据输入修改CSS浮动标签

问如何根据输入修改CSS浮动标签
EN

Stack Overflow用户
提问于 2018-12-07 07:04:05
回答 2查看 388关注 0票数 0

在我的项目中，我使用一些CSS代码为我的表单输入创建一个浮动标签。浮动标签的原始代码可以在here中找到以供参考。

但是，由于此代码包含许多浮动标签示例，因此我提取了我感兴趣的CSS (气球)的编译后的CSS，并通过修改在下面创建了一个示例。具体地说，我在输入字段中添加了一个值。

​

代码语言：javascript
复制
.balloon {
  display: inline-block;
  width: 600px;
  padding: 10px 0 10px 15px;
  font-family: "Open Sans", sans;
  font-weight: 400;
  color: #377D6A;
  background: #efefef;
  border: 0;
  border-radius: 3px;
  outline: 0;
  text-indent: 60px;
  transition: all .3s ease-in-out;
}
.balloon::-webkit-input-placeholder {
  color: #efefef;
  text-indent: 0;
  font-weight: 300;
}
.balloon + label {
  display: inline-block;
  position: absolute;
  top: 8px;
  left: 0;
  bottom: 8px;
  padding: 5px 15px;
  color: #032429;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  text-shadow: 0 1px 0 rgba(19, 74, 70, 0);
  transition: all .3s ease-in-out;
  border-radius: 3px;
  background: rgba(122, 184, 147, 0);
}
.balloon + label:after {
  position: absolute;
  content: "";
  width: 0;
  height: 0;
  top: 100%;
  left: 50%;
  margin-left: -3px;
  border-left: 3px solid transparent;
  border-right: 3px solid transparent;
  border-top: 3px solid rgba(122, 184, 147, 0);
  transition: all .3s ease-in-out;
}

.balloon:focus,
.balloon:active {
  color: #377D6A;
  text-indent: 0;
  background: #fff;
}
.balloon:focus::-webkit-input-placeholder,
.balloon:active::-webkit-input-placeholder {
  color: #aaa;
}
.balloon:focus + label,
.balloon:active + label {
  color: #fff;
  text-shadow: 0 1px 0 rgba(19, 74, 70, 0.4);
  background: #7ab893;
  transform: translateY(-40px);
}
.balloon:focus + label:after,
.balloon:active + label:after {
  border-top: 4px solid #7ab893;
}


@import url(https://fonts.googleapis.com/css?family=Open+Sans:400,700,600,300,800);
* {
  box-sizing: border-box;
}

html,
body {
  overflow-x: hidden;
  font-family: "Open Sans", sans-serif;
  font-weight: 300;
  color: #fff;
  background: #efefef;
}

.row {
  max-width: 800px;
  margin: 0 auto;
  padding: 60px 30px;
  background: #032429;
  position: relative;
  z-index: 1;
  text-align: center;
}


.row:before {
  position: absolute;
  content: "";
  display: block;
  top: 0;
  left: -5000px;
  height: 100%;
  width: 15000px;
  z-index: -1;
  background: inherit;
}
.row:first-child {
  padding: 40px 30px;
}

.row span {
  position: relative;
  display: inline-block;
  margin: 30px 10px;
}
代码语言：javascript
复制
<div class="row">
  <span>
    <input class="balloon" id="state" type="text" value="AR" placeholder="Liquid, solid, gaseous..." /><label for="state">State</label>
  </span>
  <span>
    <input class="balloon" id="planet"  value="Earth" type="text" placeholder="Probably Earth" /><label for="planet">Planet</label>
  </span>
  <span>
    <input class="balloon" id="galaxy" type="text" value="This is a test" placeholder="Milky Way?" /><label for="galaxy">Guardians of the Galaxy</label>
  </span>
</div>

​

我的问题是，如果你看了第三个输入，是如何调整标签的间距，使它们不重叠。我意识到我可以更改气球类中的文本缩进，但这将更改所有输入的间距。

有没有一种方法可以根据标签的不同长度来调整间距？

css
css-animations
EN

回答 2

Stack Overflow用户

回答已采纳

发布于 2018-12-07 07:27:31

添加一个额外的类到"Gardians“和风格，以有更多的。

然后(我不敢相信我要这么说)在active text-indent上使用!important来克服新类的额外专用性。

​

代码语言：javascript
复制
.balloon {
  display: inline-block;
  width: 600px;
  padding: 10px 0 10px 15px;
  font-family: "Open Sans", sans;
  font-weight: 400;
  color: #377D6A;
  background: #efefef;
  border: 0;
  border-radius: 3px;
  outline: 0;
  text-indent: 60px;
  transition: all .3s ease-in-out;
}

/*Wide Version - can be applied to more elements*/
.balloon.wide {  
  text-indent: 200px;
}

.balloon::-webkit-input-placeholder {
  color: #efefef;
  text-indent: 0;
  font-weight: 300;
}
.balloon + label {
  display: inline-block;
  position: absolute;
  top: 8px;
  left: 0;
  bottom: 8px;
  padding: 5px 15px;
  color: #032429;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  text-shadow: 0 1px 0 rgba(19, 74, 70, 0);
  transition: all .3s ease-in-out;
  border-radius: 3px;
  background: rgba(122, 184, 147, 0);
}
.balloon + label:after {
  position: absolute;
  content: "";
  width: 0;
  height: 0;
  top: 100%;
  left: 50%;
  margin-left: -3px;
  border-left: 3px solid transparent;
  border-right: 3px solid transparent;
  border-top: 3px solid rgba(122, 184, 147, 0);
  transition: all .3s ease-in-out;
}

.balloon:focus,
.balloon:active {
  color: #377D6A;
  /*Note !important*/
  text-indent: 0 !important;
  background: #fff;
}
.balloon:focus::-webkit-input-placeholder,
.balloon:active::-webkit-input-placeholder {
  color: #aaa;
}
.balloon:focus + label,
.balloon:active + label {
  color: #fff;
  text-shadow: 0 1px 0 rgba(19, 74, 70, 0.4);
  background: #7ab893;
  transform: translateY(-40px);
}
.balloon:focus + label:after,
.balloon:active + label:after {
  border-top: 4px solid #7ab893;
}


@import url(https://fonts.googleapis.com/css?family=Open+Sans:400,700,600,300,800);
* {
  box-sizing: border-box;
}

html,
body {
  overflow-x: hidden;
  font-family: "Open Sans", sans-serif;
  font-weight: 300;
  color: #fff;
  background: #efefef;
}

.row {
  max-width: 800px;
  margin: 0 auto;
  padding: 60px 30px;
  background: #032429;
  position: relative;
  z-index: 1;
  text-align: center;
}


.row:before {
  position: absolute;
  content: "";
  display: block;
  top: 0;
  left: -5000px;
  height: 100%;
  width: 15000px;
  z-index: -1;
  background: inherit;
}
.row:first-child {
  padding: 40px 30px;
}

.row span {
  position: relative;
  display: inline-block;
  margin: 30px 10px;
}
代码语言：javascript
复制
<div class="row">
  <span>
    <input class="balloon" id="state" type="text" value="AR" placeholder="Liquid, solid, gaseous..." /><label for="state">State</label>
  </span>
  <span>
    <input class="balloon" id="planet"  value="Earth" type="text" placeholder="Probably Earth" /><label for="planet">Planet</label>
  </span>
  <span>
    <input class="balloon wide" id="galaxy" type="text" value="This is a test" placeholder="Milky Way?" /><label for="galaxy">Guardians of the Galaxy</label>
  </span>
</div>

​

I normally avoid !important like the plague，但在这种情况下，它是有意义的。您可以通过为活动状态使用更具体的选择器来避免这种情况

代码语言：javascript
复制
.balloon:focus,
.balloon:active,
.balloon.wide:focus,
.balloon.wide:active, {
  color: #377D6A;
  text-indent: 0;
  background: #fff;
}
票数 0
EN

Stack Overflow用户

发布于 2018-12-07 07:13:04

确定输入值的目标

​

代码语言：javascript
复制
input[value="This is a test"] {text-indent:170px; }
.balloon {
  display: inline-block;
  width: 600px;
  padding: 10px 0 10px 15px;
  font-family: "Open Sans", sans;
  font-weight: 400;
  color: #377D6A;
  background: #efefef;
  border: 0;
  border-radius: 3px;
  outline: 0;
  text-indent: 60px;
  transition: all .3s ease-in-out;
}
.balloon::-webkit-input-placeholder {
  color: #efefef;
  text-indent: 0;
  font-weight: 300;
}
.balloon + label {
  display: inline-block;
  position: absolute;
  top: 8px;
  left: 0;
  bottom: 8px;
  padding: 5px 15px;
  color: #032429;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  text-shadow: 0 1px 0 rgba(19, 74, 70, 0);
  transition: all .3s ease-in-out;
  border-radius: 3px;
  background: rgba(122, 184, 147, 0);
}
.balloon + label:after {
  position: absolute;
  content: "";
  width: 0;
  height: 0;
  top: 100%;
  left: 50%;
  margin-left: -3px;
  border-left: 3px solid transparent;
  border-right: 3px solid transparent;
  border-top: 3px solid rgba(122, 184, 147, 0);
  transition: all .3s ease-in-out;
}

.balloon:focus,
.balloon:active {
  color: #377D6A;
  text-indent: 0;
  background: #fff;
}
.balloon:focus::-webkit-input-placeholder,
.balloon:active::-webkit-input-placeholder {
  color: #aaa;
}
.balloon:focus + label,
.balloon:active + label {
  color: #fff;
  text-shadow: 0 1px 0 rgba(19, 74, 70, 0.4);
  background: #7ab893;
  transform: translateY(-40px);
}
.balloon:focus + label:after,
.balloon:active + label:after {
  border-top: 4px solid #7ab893;
}


@import url(https://fonts.googleapis.com/css?family=Open+Sans:400,700,600,300,800);
* {
  box-sizing: border-box;
}

html,
body {
  overflow-x: hidden;
  font-family: "Open Sans", sans-serif;
  font-weight: 300;
  color: #fff;
  background: #efefef;
}

.row {
  max-width: 800px;
  margin: 0 auto;
  padding: 60px 30px;
  background: #032429;
  position: relative;
  z-index: 1;
  text-align: center;
}


.row:before {
  position: absolute;
  content: "";
  display: block;
  top: 0;
  left: -5000px;
  height: 100%;
  width: 15000px;
  z-index: -1;
  background: inherit;
}
.row:first-child {
  padding: 40px 30px;
}

.row span {
  position: relative;
  display: inline-block;
  margin: 30px 10px;
}
代码语言：javascript
复制
<div class="row">
  <span>
    <input class="balloon" id="state" type="text" value="AR" placeholder="Liquid, solid, gaseous..." /><label for="state">State</label>
  </span>
  <span>
    <input class="balloon" id="planet"  value="Earth" type="text" placeholder="Probably Earth" /><label for="planet">Planet</label>
  </span>
  <span>
    <input class="balloon" id="galaxy" type="text" value="This is a test" placeholder="Milky Way?" /><label for="galaxy">Guardians of the Galaxy</label>
  </span>
</div>

​

票数 0
EN
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：

https://stackoverflow.com/questions/53661002

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