CSS Media查詢和定位元素

Question

我正在嘗試做兩件事。

1. 將帶有id雞肉，牛肉和壽司的元素粘貼到其父元素的右上角。
2. 使頁面根據屏幕大小進行響應，而無需使用外部框架（例如引導程序）或其他任何工具。 我正在嘗試使用媒體查詢，但是頁面仍然沒有更改以匹配匹配的圖像。

謝謝。

不同屏幕尺寸的布局圖：

桌面

片劑

移動

 * { box-sizing: border-box; } h1 { margin-bottom: 15px; } p { font-family: Helvetica; color: white; text-align: center; } hr { border: solid 3px; black; } #chicken { float: right; padding: 10px; background-color: #ff6666; display: block; color: black; } #beef { float: right; padding: 10px; background-color: darkred; display: block; color: white; } #sushi { float: right; padding: 10px; background-color: #e6ac00; display: block; color: black; } /*Simple Responsive Framework.*/ .row { width: 100%; } /********** Desktop devices **********/ @media (min-width: 992px) { .col-lg-1, .col-lg-2, .col-lg-3, .col-lg-4, .col-lg-5, .col-lg-6, .col-lg-7, .col-lg-8, .col-lg-9, .col-lg-10, .col-lg-11, .col-lg-12 { float: left; border: 1px solid black; background-color: gray; margin: 20px; } .col-lg-1 { width: 33.33%; } .col-lg-2 { width: 33.33%; } .col-lg-3 { width: 33.33%; } } /********** Tablet devices *********/ @media (min-width: 768px) and (max-width: 991px) { .col-md-1, .col-md-2, .col-md-3, .col-md-4, .col-md-5, .col-md-6, .col-md-7, .col-md-8, .col-md-9, .col-md-10, .col-md-11, .col-md-12 { float: left; border: 1px solid black; background-color: gray; margin: 20px; } .col-md-1 { width: 50%; } .col-md-2 { width: 50%; } .col-md-3 { width: 100%; } } /********* Mobile devices *********/ @media (max-width: 767px) { .col-sm-1, .col-sm-2, .col-sm-3, .col-sm-4, .col-sm-5, .col-sm-6, .col-sm-7, .col-sm-8, .col-sm-9, .col-sm-10, .col-sm-11, .col-sm-12 { float: left; border: 1px solid black; background-color: gray; margin: 20px; } .col-sm-1 { width: 100%; } .col-sm-2 { width: 100%; } .col-sm-3 { width: 100%; } } 

 <h1>Our Menu</h1> <div class="row"> <div class="col-lg-3 col-md-6"> <p id="chicken">Chicken</p> <p> Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. </p> </div> <div class="col-lg-3 col-md-6"> <p id="beef">Beef</p> <p> Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. </p> </div> <div class="col-lg-3 col-md-6"> <p id="sushi">Sushi</p> <p> Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. </p> </div> </div> <div class="row"> <hr> </div> 

Answer 1

您正在對容器div使用邊距，其寬度以百分比表示。 例如台式機，占33.33％。 通常，為了做出響應，請盡量避免使用父容器的邊距，並使用填充或其他技巧來實現設計。 我已經修復了台式機和移動設備的代碼。 平板電腦非常簡單。 `

  * { box-sizing: border-box; } h1 { margin-bottom: 15px; } p { font-family: Helvetica; color: white; text-align: center; } hr { border: solid 3px black; } #chicken { float: right; padding: 10px; background-color: #ff6666; display: block; color: black; margin: 0; } #beef { float: right; padding: 10px; background-color: darkred; display: block; color: white; margin: 0; } #sushi { float: right; padding: 10px; background-color: #e6ac00; display: block; color: black; margin: 0; } .chickenContainer, .beefContainer, .sushiContainer{ border: 1px solid black; background-color: gray; } /*Simple Responsive Framework.*/ .row { width: 100%; } /********** Desktop devices **********/ @media (min-width: 992px) { .col-lg-1, .col-lg-2, .col-lg-3, .col-lg-4, .col-lg-5, .col-lg-6, .col-lg-7, .col-lg-8, .col-lg-9, .col-lg-10, .col-lg-11, .col-lg-12 { float: left; box-sizing: border-box; padding: 20px; } .col-lg-1 { width: 33.33%; } .col-lg-2 { width: 33.33%; } .col-lg-3 { width: 33.33%; } } /********** Tablet devices *********/ @media (min-width: 768px) and (max-width: 991px) { .col-md-1, .col-md-2, .col-md-3, .col-md-4, .col-md-5, .col-md-6, .col-md-7, .col-md-8, .col-md-9, .col-md-10, .col-md-11, .col-md-12 { float: left; box-sizing: border-box; padding: 20px; } .col-md-1 { width: 50%; } .col-md-2 { width: 50%; } .col-md-3 { width: 100%; } } /********* Mobile devices *********/ @media (max-width: 767px) { .col-sm-1, .col-sm-2, .col-sm-3, .col-sm-4, .col-sm-5, .col-sm-6, .col-sm-7, .col-sm-8, .col-sm-9, .col-sm-10, .col-sm-11, .col-sm-12 { float: left; box-sizing: border-box; padding: 20px; } .col-sm-1 { width: 100%; } .col-sm-2 { width: 100%; } .col-sm-3 { width: 100%; } } 

  <h1>Our Menu</h1> <div class="row"> <div class="col-lg-3 col-md-6"> <div class="chickenContainer"> <p id="chicken">Chicken</p> <p> Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. </p> </div> </div> <div class="col-lg-3 col-md-6"> <div class="beefContainer"> <p id="beef">Beef</p> <p> Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. </p> </div> </div> <div class="col-lg-3 col-md-6"> <div class="sushiContainer"> <p id="sushi">Sushi</p> <p> Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. </p> </div> </div> </div> 

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