.title {
    color: black;   
    }
.logo{
    width:500px;
    height:250px;
    display:block;
    margin-left: auto;
    margin-right: auto;
}
ul{
    list-style-type: none;
    padding: 0;
    overflow: hidden;
}
li{
        display: inline-block;
        text-align: center;
        padding: 14px;
        text-decoration: none;
}
.menu{
    text-align: center;
}

.welcome{
    display: block;
    margin: auto;
    outline-style:solid;
    width: 300px;
    padding: 50px;  
}
.what{
    display:block;
    margin:auto;
    outline-style: solid;
    width:300px;
    padding:50px;
}