body{
    margin: 0;
    padding: 0;
}
ul.mainMenu{
    margin: 0;
    padding: 0;
    list-style-type: none;
    display: flex;
    flex-direction: row;
    background-color: darkblue;
}
ul.mainMenu>li{
    position: relative;
    border-right: 1px solid #333;
}
ul.mainMenu>li>a{
    text-decoration: none;
    color: white;
    display: block;
    padding: .5rem;
    font-size: 18px;
    font-weight: bolder;
}
ul.mainMenu>li>a:hover{
    background-color: lightskyblue;
    color: #333;
}
ul.mainMenu>li>ul{
    position: absolute;
    left: 0;
    top: 100%;
    margin: 0;
    padding: 0;
    list-style: none;
    width: 130px;
    background-color: lightskyblue;
    display: none;
}
ul.mainMenu>li>ul>li{
    border-bottom: 1px solid white;
}
ul.mainMenu>li>ul>li>a{
    color: #333;
    font-size: 18px;
    font-weight: bold;
    text-decoration: none;
    display: block;
    padding: .5rem;
}
ul.mainMenu>li>ul>li>a:hover{
    background-color: blue;
    color: white;
}
ul.mainMenu>li:hover>ul{
    display: block;
}
ul.mainMenu>li>a.acilir1::after{
    content: "\00BB";
    color: white;
    font-size: 18px;
    font-weight: bolder;
    margin-left: .3rem;

}
ul.mainMenu>li>a.acilir2::after{
    content: "\00BB";
    color: white;
    font-size: 18px;
    font-weight: bolder;
    margin-left: .3rem;

}
ul.mainMenu>li>a.acilir3::after{
    content: "\00BB";
    color: white;
    font-size: 18px;
    font-weight: bolder;
    margin-left: .3rem;
}
div.slider{
    width: 100%;
    height:50vh;
    border-bottom: 6px solid #333;
    background-image: url(11.jpg);
    background-position: center center;
    background-size: 100% auto ;
    background-repeat: no-repeat;
}
div.content{
    display: flex;
    flex-direction: row;
    width: 100%;
    height: 70vh;
}
ul.contentNav{
    margin: 0;
    padding: 0;
    list-style-type: none;
}
ul.contentNav>li{
    border-bottom: 1px solid #333;
    position: relative;
}
ul.contentNav>li>a{
    color: white;
    font-size: 18px;
    font-weight: bold;
    text-decoration: none;
    display: block;
    padding: .5rem;
}
ul.contentNav>li>a:hover{
    background-color: #333;
}
div.content>div:nth-child(1){
    flex-basis: 15%;
    background-color: darkred;
    border-right: 5px solid #333;
}
div.content>div:nth-child(2){
    background-color: #333;
    width: 85%;
    overflow: hidden;
}
div.content>div:nth-child(2)>div{
    height: 75vh;
    background-color: lightblue;
    border: 1px solid #333;
    overflow: hidden;
    display: none;
}
div.content>div:nth-child(2)>div>img{
    width: 100%;
    height: 100vh;

    
}
div.content>div:nth-child(2)>div:target{
    display: block;
}