CSS：鼠标移出时的过渡不透明度？

您仅将转换应用于

:hover

.item {     height:200px;  width:200px;  background:red;   -webkit-transition: opacity 1s ease-in-out;  -moz-transition: opacity 1s ease-in-out;  -ms-transition: opacity 1s ease-in-out;  -o-transition: opacity 1s ease-in-out;  transition: opacity 1s ease-in-out;}.item:hover {  zoom: 1;  filter: alpha(opacity=50);  opacity: 0.5;}

如果您只希望过渡不影响

mouse-over

mouse-out

:hover

.item:hover {  -webkit-transition: none;  -moz-transition: none;  -ms-transition: none;  -o-transition: none;  transition: none;  zoom: 1;  filter: alpha(opacity=50);  opacity: 0.5;}