Flex-end 不适用于显示 flex 的 div 内的按钮

Posted 2023-02-21

【中文标题】Flex-end 不适用于显示 flex 的 div 内的按钮

【英文标题】：Flex-end is not working on a button inside a div with display of flex

【发布时间】：2022-01-12 05:26:13

【问题描述】：

所以我觉得我已经尽一切努力让这个按钮进入 div 的底部，但似乎没有任何效果。如果我将容器 div 切换为 align-content: flex-end 一切都将移至底部，但我试图将 div 保持在顶部并且只按下按钮。我正在使用 React 和 CSS 模块。

import styles from './Total.module.css';

const Total = ( tipTotal, total, handleReset ) => 
  return (
    <div className=styles.total>
      <div className=styles.totalTipAmount>
        <div className=styles.totalLeft>
          <div className=styles.totalTop>Tip Amount</div>
          <div className=styles.totalBottom>/ person</div>
        </div>
        <div className=styles.totalRight>$tipTotal</div>
      </div>
      <div className=styles.toalAmount>
        <div className=styles.totalLeft>
          <div className=styles.totalTop>Total</div>
          <div className=styles.totalBottom>/ person</div>
        </div>
        <div className=styles.totalRight>$total</div>
      </div>
      <button className=styles.totalReset onClick=handleReset>
        RESET
      </button>
    </div>
  );
;

export default Total;

.total 
  display: flex;
  align-self: center;
  flex-direction: column;
  width: 80%;
  min-width: 80%;
  margin: 30px 0;
  background-color: var(--Very-dark-cyan);
  border-radius: 15px;
  padding: 30px 15px 5px 15px;


.total div 
  display: flex;
  justify-content: space-between;
  margin-bottom: 10px;
  justify-self: flex-start;


.totalLeft 
  display: flex;
  flex-direction: column;


.totalTop 
  color: var(--White);
  font-size: medium;
  margin-bottom: 5px !important;


.totalBottom 
  font-size: small;
  color: var(--Dark-blueish-cyan);


.totalRight 
  font-size: xx-large;
  color: var(--Strong-cyan);


.total button 
  background-color: var(--Strong-cyan);
  color: var(--Very-dark-cyan);
  font-size: large;
  font-weight: 700;
  width: 100%;
  max-width: 100%;


@media (min-width: 900px) 
  .total 
    height: 100%;
    grid-column-start: 2;
    grid-row-start: 1;
    grid-row-end: 4;
    justify-self: center;
  

  .total button 
    align-self: flex-end;
  

【参考方案1】：

remove width:100% from button tag css

【参考方案2】：

    .total 
    height: 100%;
    grid-column-start: 2;
    grid-row-start: 1;
    grid-row-end: 4;
    justify-self: center;
    position:relative;
  
  .total button 
    align-self: flex-end;
    position: absolute;
    right: 20px;
  

【参考方案3】：

body, html 
  height: 100%;

.total 
  display: flex;
  flex-direction: column;
  width: 80%;
  min-width: 80%;
  margin: 30px 0;
  background-color: var(--Very-dark-cyan);
  border-radius: 15px;
  padding: 30px 15px 5px 15px;
  height: 80%;
  border: 1px solid red;
  justify-content: space-between;


.totalTipAmount, .totalAmount 
  display: flex;
  justify-content: space-between;
  margin-bottom: 10px;


.totalLeft 
  display: flex;
  flex-direction: column;


.totalTop 
  color: var(--White);
  font-size: medium;
  margin-bottom: 5px !important;


.totalBottom 
  font-size: small;
  color: var(--Dark-blueish-cyan);


.totalRight 
  font-size: xx-large;
  color: var(--Strong-cyan);


.totalReset 
  justify-self: flex-end;
  border: 1px solid blue;


.total button 
  background-color: var(--Strong-cyan);
  color: var(--Very-dark-cyan);
  font-size: large;
  font-weight: 700;
  width: 100%;
  max-width: 100%;


@media (min-width: 900px) 
  .total 
    height: 100%;
    grid-column-start: 2;
    grid-row-start: 1;
    grid-row-end: 4;
    justify-self: center;
  

  .total button 
    align-self: flex-end;
  

 <div class="total">
   <div class="stuffAtTheTop">
     <div class="totalTipAmount">
       <div class="totalLeft">
         <div class="totalTop">Tip Amount</div>
         <div class="totalBottom">/ person</div>
       </div>
       <div class="totalRight">$tipTotal</div>
     </div>
     <div class="totalAmount">
       <div class="totalLeft">
         <div class="totalTop">Total</div>
         <div class="totalBottom">/ person</div>
       </div>
       <div class="totalRight">$total</div>
     </div>
   </div>
   <button class="totalReset">
     RESET
   </button>
  </div>
</div>