body{
    background-color: azure;
}
nav{
    display: flex;
    align-items: center;
    justify-content: space-between;
}
ul{
    display: flex;
}
li{
    padding: 2px;
    margin: 2px;
    list-style: none;
}
#first{
    text-align: center;
}
.parent{
    display: flex;
}
.four{
    padding: 10px;
    text-align: center;
    border: ;
    
}
button{
    display: inline-block;
    background-color: gold;
}
.footer{
    text-align: right;
}
.iframe{
    text-align: center;
}
.paragraph{
    text-align: right;
}