body{
    color: #666;
}

.header, .main, .footer{
    width: 1000px;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 0%;
}

header, main, footer{
    background-color: #fff;
    padding-top: 20px;
    padding-bottom:20px;
}

img{
    width: 400px;
    vertical-align: bottom;
    border-radius: 20px;
    text-align: center;
}

nav .ul1{
    display: grid;
    grid-template-columns:1fr 1fr 1fr;
    grid-template-rows:auto auto;
    margin: 36px 2px 2px;
    padding: 0;
}
nav .ul2{
    display: grid;
    grid-template-columns:1fr 1fr 1fr 1fr;
    grid-template-rows:auto auto;
    margin:2px 2px 10px 2px;
    padding: 0;
}

.grid {
    display: grid;
    grid-template-columns:1fr 1fr;
    grid-template-rows:auto auto;
    margin:2px 2px 10px 2px;
    padding: 0;
}

.sub{
    text-align: center;
}