CSS选择器和单位测验

text-align: center (correct)

position: absolute; left:50%; margin-left:

margin: 0 auto

display: flex; justify-content: center

margin: 0 auto

position: absolutelefttopmargin-leftmargin-top() (correct)

transform: translate(x, y)

display: table-cell; vertical-align: middle

+ margin:

display: table-cell; vertical-align: middle

flexdisplay: flex; justify-content: center

+left:50%+margin: (correct)

<p>lefttopmargin-leftmargin-top()</p> Signup and view all the answers

<p>disaply: table-cell; vertical-align: middle</p> Signup and view all the answers