如何让输入元素占据所有可用的垂直空间？

Question

我目前正在开发一个 HTML 计算器，并制作了一个表格来输入各种数字。该表单位于作为侧边栏的 div 中，我为每一行创建了一个 div，其中包含一个输入和标签。但是，输入元素上方留有大量空间，以及它们附加到输入元素的边框。我怎么能让输入占用所有可用的垂直空间？ Picture of extra space

.sidebar {
  background-color: #272640;
  float: left;
  width: 20%;
  height: 100%;
  position: fixed;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  border: 1px solid #3E1F47;
}

#sidebarCentered {
}

.siderow {
  background-color: #312244;
  border-top: 1px solid #3E1F47;
  color: white;
  padding: 10px;
  box-sizing: border-box;
  width: 50% text-align:center;
  font-family: monaco;
}

.siderow label {}

.siderow input {
  box-sizing: border-box;
  background-color: #312244;
  border: 0px;
  height: 100%;
  border-left: 1px solid #5A5766;
  color: white;
  width: 50%;
  float: right;
  text-align: center;
}

.sidebarbuttons {
  background-color: #312244;
  margin-top: 10%;
}

.sidebarbuttons input {
  background-color: #312244;
  font-family: monaco;
  font-size: 15px;
  margin: 5px;
  width: 45%;
  color: white;
  padding: 10px;
  border: 1px solid #3E1F47;
  border-radius: 10px;
  transition: all ease-in-out 0.15s;
}

.sidebarbuttons input:hover {
  background-color: #272640;
  color: #272640;
  transition: all ease-in-out 0.15s;
}

#centermenu {
  background-color: #212F45;
  color: #EDFFEC;
  overflow: hidden;
  text-decoration: none;
  border-bottom: 1px solid #5A5766;
  box-sizing: border-box;
}

<div class="sidebar">
  <form id="sidebarCentered">
    <div class="siderow">
      <label for="balance">Balance:</label>
      <input type="number" name="balance" value=500>
    </div>
    <div class="siderow">
      <label for="monthly">Monthly <br> contribution:</label>
      <input type="number" name="monthly" value=0>
    </div>
    <div class="siderow">
      <label for="nummonths">Number of <br> Months:</label>
      <input type="number" name="nummonths" value=12>
    </div>
    <div class="siderow" style="border-bottom:1px solid #3E1F47;">
      <label for="ror">Monthly Rate <br> of Return:</label>
      <input type="number" name="ror" value=1>
    </div>
    <div class="sidebarbuttons">
      <input type="button" value="Calculate" style="float:left;">
      <input type="button" value="Quit" style="float:right;">
    </div>

  </form>
</div>

Answer 1

你可以试试css网格

.sidebar {
  background-color: #272640;
  float: left;
  width: 30%;
  height: 100%;
  position: fixed;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  border: 1px solid #3E1F47;
}

.siderow {
  background-color: #312244;
  border-top: 1px solid #3E1F47;
  color: white;
  padding: 10px;
  box-sizing: border-box;
  width: 50% text-align:center;
  font-family: monaco;
  display: grid;
  grid-template-columns: 1fr minmax(50%, 1fr);
  justify-items: left;
}
input {
  justify-self: right;
}

.siderow input {
  box-sizing: border-box;
  background-color: #312244;
  border: 0px;
  height: 100%;
  border-left: 1px solid #5A5766;
  color: white;
  width: 50%;
  float: right;
  text-align: center;
}

.sidebarbuttons {
  background-color: #312244;
  margin-top: 10%;
}

.sidebarbuttons input {
  background-color: #312244;
  font-family: monaco;
  font-size: 15px;
  margin: 5px;
  width: 45%;
  color: white;
  padding: 10px;
  border: 1px solid #3E1F47;
  border-radius: 10px;
  transition: all ease-in-out 0.15s;
}

.sidebarbuttons input:hover {
  background-color: #272640;
  color: #272640;
  transition: all ease-in-out 0.15s;
}

#centermenu {
  background-color: #212F45;
  color: #EDFFEC;
  overflow: hidden;
  text-decoration: none;
  border-bottom: 1px solid #5A5766;
  box-sizing: border-box;
}

<div class="sidebar">
  <form id="sidebarCentered">
    <div class="siderow">
      <label for="balance">Balance:</label>
      <input type="number" name="balance" value=500>
    </div>
    <div class="siderow">
      <label for="monthly">Monthly <br> contribution:</label>
      <input type="number" name="monthly" value=0>
    </div>
    <div class="siderow">
      <label for="nummonths">Number of <br> Months:</label>
      <input type="number" name="nummonths" value=12>
    </div>
    <div class="siderow" style="border-bottom:1px solid #3E1F47;">
      <label for="ror">Monthly Rate <br> of Return:</label>
      <input type="number" name="ror" value=1>
    </div>
    <div class="sidebarbuttons">
      <input type="button" value="Calculate" style="float:left;">
      <input type="button" value="Quit" style="float:right;">
    </div>

  </form>
</div>

Answer 2

该空间是由.siderow 中的 10px 填充造成的。我将填充更改为0 10px，它将顶部和底部填充设置为零，左/右设置为 10px。为了清楚起见，我还添加了min-width: 200px; 到.sidebar。你可能想改变它。多余的垂直空间已被移除。

.sidebar {
  background-color: #272640;
  float: left;
  width: 20%;
  min-width: 200px;
  height: 100%;
  position: fixed;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  border: 1px solid #3E1F47;
}

#sidebarCentered {
}

.siderow {
  background-color: #312244;
  border-top: 1px solid #3E1F47;
  color: white;
  padding: 0 10px; /* changed here */
  box-sizing: border-box;
  width: 50% text-align:center;
  font-family: monaco;
}

.siderow label {}

.siderow input {
  box-sizing: border-box;
  background-color: #312244;
  border: 0px;
  height: 100%;
  border-left: 1px solid #5A5766;
  color: white;
  width: 50%;
  float: right;
  text-align: center;
}

.sidebarbuttons {
  background-color: #312244;
  margin-top: 10%;
}

.sidebarbuttons input {
  background-color: #312244;
  font-family: monaco;
  font-size: 15px;
  margin: 5px;
  width: 45%;
  color: white;
  padding: 10px;
  border: 1px solid #3E1F47;
  border-radius: 10px;
  transition: all ease-in-out 0.15s;
}

.sidebarbuttons input:hover {
  background-color: #272640;
  color: #272640;
  transition: all ease-in-out 0.15s;
}

#centermenu {
  background-color: #212F45;
  color: #EDFFEC;
  overflow: hidden;
  text-decoration: none;
  border-bottom: 1px solid #5A5766;
  box-sizing: border-box;
}

<div class="sidebar">
  <form id="sidebarCentered">
    <div class="siderow">
      <label for="balance">Balance:</label>
      <input type="number" name="balance" value=500>
    </div>
    <div class="siderow">
      <label for="monthly">Monthly <br> contribution:</label>
      <input type="number" name="monthly" value=0>
    </div>
    <div class="siderow">
      <label for="nummonths">Number of <br> Months:</label>
      <input type="number" name="nummonths" value=12>
    </div>
    <div class="siderow" style="border-bottom:1px solid #3E1F47;">
      <label for="ror">Monthly Rate <br> of Return:</label>
      <input type="number" name="ror" value=1>
    </div>
    <div class="sidebarbuttons">
      <input type="button" value="Calculate" style="float:left;">
      <input type="button" value="Quit" style="float:right;">
    </div>

  </form>
</div>

Answer 3

给 .siderow 填充 0 并为 .siderow 输入和 .siderow 标签添加高度。

接下来，删除那些 br 标签并将 flex 添加到 .siderow 标签，这样它就可以在中间垂直对齐。另外，不要使用内联 css。

总而言之，您将拥有这个：

<div class="sidebar">
  <form id="sidebarCentered">
    <div class="siderow">
      <label for="balance">Balance:</label>
      <input type="number" name="balance" value=500>
    </div>
    <div class="siderow">
      <label for="monthly">Monthly contribution:</label>
      <input type="number" name="monthly" value=0>
    </div>
    <div class="siderow">
      <label for="nummonths">Number of Months:</label>
      <input type="number" name="nummonths" value=12>
    </div>
    <div class="siderow">
      <label for="ror">Monthly Rate of Return:</label>
      <input type="number" name="ror" value=1>
    </div>
    <div class="sidebarbuttons">
      <input type="button" value="Calculate" style="float:left;">
      <input type="button" value="Quit" style="float:right;">
    </div>
  </form>
</div>

和 CSS

.sidebar {
  background-color: #272640;
  float: left;
  width: 400px;
  height: 100%;
  position: fixed;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  border: 1px solid #5A5766;
}

#sidebarCentered {
}

.siderow {
  border-top: 1px solid #5A5766;
  color: white;
  padding: 0;
  box-sizing: border-box;
  width: 100%;
  text-align:center;
  font-family: monaco;
  height: auto;
  float: left;
}

.siderow:first-child {
  border-top: none;
}

.siderow:nth-child(4) {
  border-bottom: 1px solid #5A5766;
}

.siderow label {
  width: calc(50% - 5px);
  float: left;
  height: 40px;
  display: flex;
  align-items: center;
  margin-left: 5px;
}

.siderow input {
  box-sizing: border-box;
  background-color: #272640;
  border: 0;
  height: 100%;
  border-left: 1px solid #5A5766;
  color: white;
  width: 50%;
  float: left;
  text-align: center;
  height: 40px;
}

.sidebarbuttons {
  margin-top: 10%;
}

.sidebarbuttons input {
  background-color: #888;
  font-family: monaco;
  font-size: 15px;
  margin: 5px;
  width: 45%;
  color: white;
  padding: 10px;
  border: 1px solid #5A5766;
  border-radius: 10px;
  transition: all ease-in-out 0.15s;
}

.sidebarbuttons input:hover {
  background-color: #ccc;
  color: #272640;
  transition: all ease-in-out 0.15s;
}

#centermenu {
  background-color: #212F45;
  color: #EDFFEC;
  overflow: hidden;
  text-decoration: none;
  border-bottom: 1px solid #5A5766;
  box-sizing: border-box;
}

链接到 Fiddle 以供参考 https://jsfiddle.net/kavyw86d/