css3: 基本知识记录
1、transition过渡;
元素从一种样式到另一种样式添加效果;
div
{
transition: width 2s, height 2s, transform 2s;
-moz-transition: width 2s, height 2s, -moz-transform 2s;
-webkit-transition: width 2s, height 2s, -webkit-transform 2s;
-o-transition: width 2s, height 2s,-o-transform 2s;
}
2、动画(@keyframes, animation);
@keyframes:用于创建动画;创建由当前样式逐渐为新样式的动画效果;
@keyframes myfirst
{
from {background: red;}
to {background: yellow;}
}
@-moz-keyframes myfirst /* Firefox */
{
from {background: red;}
to {background: yellow;}
}
@-webkit-keyframes myfirst /* Safari 和 Chrome */
{
from {background: red;}
to {background: yellow;}
}
@-o-keyframes myfirst /* Opera */
{
from {background: red;}
to {background: yellow;}
}
上面是定义动画规则;
div
{
animation: myfirst 5s;
-moz-animation: myfirst 5s; /* Firefox */
-webkit-animation: myfirst 5s; /* Safari 和 Chrome */
-o-animation: myfirst 5s; /* Opera */
}
将myfirst动画绑定到div上;
3、导航伸缩;
@media screen and (max-width: 1200px) { //1200px以上,导航侧边栏出现,占总宽度的30%;
#fh5co-aside {
width: 30%;
}
}
@media screen and (max-width: 768px) { //768px以下, 导航侧边缩进去;
#fh5co-aside {
width: 270px;
-moz-transform: translateX(-270px);
-webkit-transform: translateX(-270px);
-ms-transform: translateX(-270px);
-o-transform: translateX(-270px);
transform: translateX(-270px);
}
}
4、div固定位置
position: fixed; 固定位置,不随页面滚动;
注: 该博文为扩展型;

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