如何修復div的高度，以便動態添加資料不會改變它的高度？-有解無憂

我正在嘗試制作一個簡單的計算器，并且幾乎完成了它，除了我無法修復它的螢屏高度。當我輸入資料時，計算器螢屏的高度會發生變化。要重現此問題，您可以嘗試添加 1 2。我一直在嘗試添加 min-height 和 max-height 但無濟于事。我可以用 js 固定它的高度，但我想要一個純 CSS 解決方案。這是代碼：

let screen = document.getElementById("screen");
let firstArg = document.querySelector(".firstArg");
let operator = document.querySelector(".operator");
let secondArg = document.querySelector(".secondArg");
let numberBtns = document.querySelectorAll(".data-number");
let acBtn = document.querySelector(".ac");
let clearBtn = document.querySelector(".clear");
let backBtn = document.querySelector(".back");
let decimalBtn = document.querySelector(".decimal");
let equalBtn = document.querySelector(".equal");
let operationBtn = document.querySelectorAll(".operation");
let regex = /[ -/*]/;
let digits = /[0-9]/;

numberBtns.forEach(n => n.addEventListener("click", e => {
  if (firstArg.innerHTML === "0") {
    firstArg.innerHTML = "";
  }
  if (operator.textContent === "" && firstArg.clientWidth   40 < screen.offsetWidth) {
    firstArg.append(n.textContent);
  } else if (operator.textContent && secondArg.clientWidth   40 < screen.offsetWidth) {
    secondArg.append(n.textContent);
  }
}));

decimalBtn.addEventListener("click", e => {
  if (!firstArg.textContent.includes(".") && operator.textContent === "") {
    firstArg.append(decimalBtn.textContent);
  } else if (!secondArg.textContent.includes(".") && operator.textContent) {
    secondArg.append(decimalBtn.textContent);
  }
});

operationBtn.forEach(n => n.addEventListener("click", e => {
  if (!regex.test(operator.textContent)) {
    operator.append(n.textContent);
    firstArg.append(" ");
    firstArg.append(operator.textContent);
  }
}))

equalBtn.addEventListener("click", e => {
  let firstParam = firstArg.textContent.split(" ")[0];
  let oper = operator.textContent;
  let secondParam = secondArg.textContent;
  if (secondParam == "") return;
  solve(firstParam, oper, secondParam);
})

document.addEventListener("keydown", e => {
  if (e.key == " ") {
    if (!regex.test(operator.textContent)) {
      operator.append(e.key);
      firstArg.append(" ");
      firstArg.append(operator.textContent);
    }
  }
  if (e.key == "/") {
    if (!regex.test(operator.textContent)) {
      operator.append(e.key);
      firstArg.append(" ");
      firstArg.append(operator.textContent);
    }
  }
  if (e.key == "-") {
    if (!regex.test(operator.textContent)) {
      operator.append(e.key);
      firstArg.append(" ");
      firstArg.append(operator.textContent);
    }
  }
  if (e.key == "*") {
    if (!regex.test(operator.textContent)) {
      operator.append(e.key);
      firstArg.append(" ");
      firstArg.append(operator.textContent);
    }
  }
  if (digits.test(e.key)) {
    if (firstArg.innerHTML === "0") {
      firstArg.innerHTML = "";
    }
    if (operator.textContent === "" && firstArg.clientWidth   40 < screen.offsetWidth) {
      firstArg.append(e.key);
    } else if (operator.textContent && secondArg.clientWidth   40 < screen.offsetWidth) {
      secondArg.append(e.key);
    }
  }
  if (e.code === "Enter") {
    let firstParam = firstArg.textContent.split(" ")[0];
    let oper = operator.textContent;
    let secondParam = secondArg.textContent;
    if (secondParam == "") return;
    solve(firstParam, oper, secondParam);
  }
})

function solve(first, oper, second) {
  switch (oper) {
    case "-":
      firstArg.innerHTML = `${((Number(first) * 10 - Number(second) * 10) / 10).toFixed(1)}`;
      operator.textContent = "";
      secondArg.textContent = "";
      break;
    case " ":
      firstArg.innerHTML = `${((Number(first) * 10   Number(second) * 10) / 10).toFixed(1)}`;
      operator.textContent = "";
      secondArg.textContent = "";
      break;
    case "/":
      firstArg.innerHTML = `${((Number(first) * 10 / Number(second) * 10) / 10).toFixed(1)}`;
      operator.textContent = "";
      secondArg.textContent = "";
      break;
    case "*":
      firstArg.innerHTML = `${((Number(first) * 10 * Number(second) * 10) / 10).toFixed(1)}`;
      operator.textContent = "";
      secondArg.textContent = "";
      break;
  }
}

backBtn.addEventListener("click", e => {
  if ((operator.textContent || firstArg.textContent.length > 1) && secondArg.textContent == "") {
    operator.innerHTML = "";
    let remaining = firstArg.textContent.slice(0, firstArg.textContent.length - 1).trim();
    firstArg.innerHTML = "";
    firstArg.innerHTML = remaining;
  } else if (firstArg.textContent.length === 1 && secondArg.textContent == "") {
    firstArg.innerHTML = "0";
  } else if (secondArg.textContent) {
    let remaining = secondArg.textContent.slice(0, secondArg.textContent.length - 1).trim();
    secondArg.innerHTML = "";
    secondArg.innerHTML = remaining;
  }
})

window.onload = function() {
  firstArg.innerHTML = 0;
}
acBtn.addEventListener("click", function() {
  firstArg.innerHTML = 0;
  secondArg.innerHTML = "";
  operator.textContent = "";
})

.claculator {
  display: grid;
  grid-template-rows: 70px 1fr;
  grid-gap: 35px 0;
  margin: 0 auto;
  border: 2px solid black;
  width: 350px;
  height: 370px;
  border-radius: 27px;
  padding: 12px 9px;
  align-items: center;
  background-color: #191a1c;
}

#screen {
  background-color: #ffffff;
  border-radius: 5px;
  min-height: 70px;
  min-width: 200px;
  margin-top: 20px;
}

#funBtns {
  display: grid;
  grid-template-columns: repeat(4, 50px);
  grid-template-rows: repeat(5, 30px);
  grid-gap: 20px 40px;
  justify-content: center;
}

button {
  background-color: #191a1c;
  color: white;
  border: none;
  border: 1px solid white;
  border-radius: 5px;
  width: 100%;
}

button:hover {
  transform: translateY(-5px);
  transition: 200ms ease-out;
  background-color: white;
  color: black;
}

.button-plus {
  grid-row: span 2;
}

#screen {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  row-gap: 25px;
  padding-top: 10px;
  padding-right: 10px;
}

.firstArg {
  float: right;
  font-size: 20px;
  font-weight: 500;
  color: rgb(0, 0, 0);
  text-overflow: clip;
}

.secondArg {
  float: right;
  font-size: 25px;
  font-weight: 900;
  color: rgb(24, 22, 22);
}

.operator {
  display: none;
}

<!DOCTYPE html>
<html>

<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width">
  <title>Calculator</title>
  <link rel="stylesheet" href="style.css">
  <script src="calculator.js" defer></script>
</head>

<body>
  <div class="claculator">
    <div id="screen">
      <span class="firstArg"></span>
      <span class="operator"></span>
      <span class="secondArg"></span>
    </div>
    <div id="funBtns">
      <button class="button ac">AC</button>
      <button class="button clear">Clear</button>
      <button class="button back">Back</button>
      <button class="operation">/</button>
      <button class="data-number">1</button>
      <button class="data-number">2</button>
      <button class="data-number">3</button>
      <button class="operation">*</button>
      <button class="data-number">4</button>
      <button class="data-number">5</button>
      <button class="data-number">6</button>
      <button class="operation">-</button>
      <button class="data-number">7</button>
      <button class="data-number">8</button>
      <button class="data-number">9</button>
      <button class="operation button-plus"> </button>
      <button class="button decimal">.</button>
      <button class="data-number">0</button>
      <button class="button equal">=</button>
    </div>
  </div>
</body>

</html>

uj5u.com熱心網友回復：

將字體大小更改為 1 rem

.secondArg {
  float: right;
  font-size: 1rem;
  font-weight: 900;
  color: rgb(24, 22, 22)}

uj5u.com熱心網友回復：

使#screen 的字體大小等于 1rem，
然后將高度設定為 1rem（如果您希望螢屏為一行高）或 2rem（對于兩行高）
1rem = :root 字體大小（以像素為單位）。
由于您已經添加了填充（并且顯然有兩個#screen），因此也可以根據 rem 將填充高度添加到高度。
螢屏總高度= height(in rem) padding(in rem)
rem 到像素轉換的鏈接：http: //www.standardista.com/px-to-rem-conversion-if-root-font-size-is- 16 像素/ .

uj5u.com熱心網友回復：

嘗試將 css 值設定為max-heightdiv 的類或 id。

轉載請註明出處，本文鏈接：https://www.uj5u.com/gongcheng/418603.html

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