由于css的position:sticky的粘贴定位存在兼容性问题,因为决定使用js来判断盒子的位置,添加固定定位来解决,实例代码如下:
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Document</title> </head> <style> body{ outline: 1px solid; } .topclass{ width: 100%; background: violet; height: 50px; } .title{ width: 100%; background: rgb(50, 191, 38); height: 30px; } .content{ width: 100%; background: rgba(24, 104, 233, 0.225); height: 2000px; } p{ margin: 0; } </style> <body> <div class="g-container"> <div class="topclass">顶部</div> <div class="title">选项卡1454</div> <div class="content"> <p>1i</p> <p>2i</p> <p>3i</p> <p>4i</p> <p>5i</p> <p>6i</p> <p>7i</p> <p>8i</p> <p>9i</p> <p>10i</p> <p>11i</p> <p>12i</p> <p>13i</p> <p>14i</p> <p>15i</p> <p>16i</p> <p>17i</p> <p>18i</p> <p>19i</p> <p>20i</p> <p>21i</p> <p>22i</p> <p>23i</p> <p>24i</p> <p>25i</p> <p>26i</p> <p>27i</p> <p>28i</p> <p>29i</p> <p>30i</p> </div> </div> <script> window.addEventListener("scroll",fun) function fun() { let dom = document.querySelector(".g-container") let rect = dom.getBoundingClientRect() let topclassBox = document.querySelector(".title") if(rect.top<-50){ topclassBox.style.position = "fixed" topclassBox.style.top = 0 } if(rect.top>=-50){ topclassBox.style.position = "relative" topclassBox.style.top = 0 } } </script> </body> </html>
注意点:不能直接监听要定位的盒子,最好在它外面再加一层,判断外层的盒子!
标签:滚动,100%,js,let,topclassBox,background,height,粘贴 From: https://www.cnblogs.com/hhcome/p/17449168.html