【案例简介】

css动画导航悬停特效demo

【案例截图】

【核心代码】

/* Top and Bottom borders go out */
div.topBotomBordersOut a:before, div.topBotomBordersOut a:after
{
    position: absolute;
    left: 0px;
    width: 100%;
    height: 2px;
    background: #FFF;
    content: "";
    opacity: 0;
    transition: all 0.3s;
}

div.topBotomBordersOut a:before
{
    top: 0px;
    transform: translateY(10px);
}

div.topBotomBordersOut a:after
{
    bottom: 0px;
    transform: translateY(-10px);
}

div.topBotomBordersOut a:hover:before, div.topBotomBordersOut a:hover:after
{
    opacity: 1;
    transform: translateY(0px);
}

/* Top and Bottom borders come in */
div.topBotomBordersIn a:before, div.topBotomBordersIn a:after
{
    position: absolute;
    left: 0px;
    width: 100%;
    height: 2px;
    background: #FFF;
    content: "";
    opacity: 0;
    transition: all 0.3s;
}