Gui_wawa的博客

html> html lang="en"> head> meta charset="UTF-8"> title>Titletitle> style> #dv{ width: 300px; height: 200px; background-color: pink;

Title *{ margin: 0; padding: 0; } div{ width: 200px; height:100px; background-color: green; positio

Title div{ width: 200px; height:100px; background-color: green; position: absolute; } //获取元素 function my$(id){