body{
    margin: 0px;
    background-color: lightblue;
}
nav{
    margin: 20px auto;
    width: 150px;
    height: 200px;
    background-color: #000;
    border-radius: 20px;
}
.kutu{
    width: 150px;
    height: 200px;
    border: 4px solid #F5FF8B;
    border-radius: 20px;
}
.ust-yari{
    width: 150px;
    height: 100px;
    background-color: #6760F6;
    border-radius: 15px 15px 0 0;
    float: left;
}
.daire {
    margin: 20px auto;
    width: 50px;
    height: 50px;
    border: 4px solid #F5FF8B;
    background-color: #F5FF8B;
    border-radius: 50px;
}
.alt-yari{
    width: 150px;
    height: 100px;
    background-color: #22005E;
    border-radius: 0 0 15px 15px;
    float: left;
}