To position horizontally center you can say width: 50%; margin: auto; . As far as I know, that's cross browser. For vertical alignment you can ... ... <看更多>

html, body { width: 100%; height: 100%; display: table; } .container { display: table-cell; text-align: center; vertical-align: middle; } ... ... <看更多>

Align Div Center Using Table-Cell CSS and Text Align Center | #shorts #htmlcssIn this video, I show you how ... ... <看更多>

The lack of good ways to vertically center elements in CSS has been a dark ... centering options ranges from negative margins to display:table-cell to ... ... <看更多>

... the div display to a table cell as table cells support vertical alignment. ... display: table; width: 100%; } .text { text-align: center; height: 300px; ... ... <看更多>