如何在每个输入的基础上修改CSS浮动标签

时间：2018-12-06 23:04:05

标签： css css-animations

在我的项目中，我正在使用一些CSS代码为表单输入创建浮动标签。可以在here中找到浮动标签的原始代码以供参考。

但是，由于此代码包含许多浮动标签示例，因此我为（气球）我感兴趣的示例提取了已编译的CSS，并在以下示例中进行了修改。具体来说，我已经在输入字段中添加了一个值。 

.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;
}
<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>

如果您看第三个输入，我要问的问题是如何调整标签的间距，以使它们不重叠。我意识到我可以在气球类中更改文本缩进，但这将更改所有输入的间距。

是否可以单独调整间距以适应标签中的不同长度？

2 个答案:

答案 0 :(得分：0)

定位输入值

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;
}
<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>

答案 1 :(得分：0)

为“加迪安人”添加一个额外的类，并为其添加样式，以使其更多。

然后（而且我不敢这么说）在活动!important上使用text-indent来克服新类的额外特殊性。

.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;
}
<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，但在这种情况下很有意义。您可以通过为活动状态使用更多特定的选择器来避免这种情况

.balloon:focus,
.balloon:active,
.balloon.wide:focus,
.balloon.wide:active, {
  color: #377D6A;
  text-indent: 0;
  background: #fff;
}
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