.nav {
    background-color: #edf2f2;
    height: 120px;
    width: 100%;
    line-height: 25px;
    position: absolute;
    top: 0px;
    left: 0;
}
.nav li{
    float:left;
    width:75px;
    text-align:center;
    color:black;
}
.ul_top{
    list-style: none;
    position: absolute;
    top: 0px;
    left: 250px;
animation: toShow 1.5s 0.5s;
animation-fill-mode: both !important;
-webkit-animation-fill-mode: both !important;
}
.nav a{
    display:block;
    color:black;
    text-decoration: none;
    width: 80px;
    line-height: 30px;
}
.wellcome audio {
    top: 0px;
    right: 0px;
}
.nav a:hover{
    color:white;
    background:green;
}
.news img {
    border-style: solid;
    border-width: 5px;
    border-color: black;
}
.news {
    background-color: #edf2f2;
    border-radius: 30px;
}
.text{
    margin-top:140px;
}
.toShow {
position: fixed;
animation: toShow 1.5s 0.5s;
animation-fill-mode: both !important;
-webkit-animation-fill-mode: both !important;
}