【CSS】讓圖片在高寬固定的div裡水平垂直都居中的三種辦法
阿新 • • 發佈:2021-12-21
效果:
實現一:絕對定位加精算
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>圓角Img示例</title> <style type="text/css"> .parentDiv{ width:200px; height:400px; background-color:yellow; position:relative; } .childImg{ position:absolute; height:128px; width:128px; left:36px;/* (200-128)/2 */ top:136px;/* (400-128)/2 */ } </style> </head> <body> <div class="parentDiv"> <img class="childImg" src="bggj-08.png" /> </div> </body> </html>
實現二:無須計算 自動偏移 比上面方法省事
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>圖片垂直水平居中</title> <style type="text/css"> .parentDiv{ width:200px; height:400px; background-color:yellow; position:relative; } .childImg{ height:128px; width:128px; position:absolute; left:50%; top:50%; transform:translate(-50%,-50%); } </style> </head> <body> <div class="parentDiv"> <img class="childImg" src="bggj-08.png" /> </div> </body> </html>
方法三:柔性佈局,但僅在Chrome中好用,Editplus3不支援,別的瀏覽器自己試。
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>圖片垂直水平居中</title> <style type="text/css"> .parentDiv{ width:200px; height:400px; background-color:yellow; display:flex; justify-content:center; align-items:center; } .childImg{ height:128px; width:128px; } </style> </head> <body> <div class="parentDiv"> <img class="childImg" src="bggj-08.png" /> </div> </body> </html>
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