.main{
    display: flex;
}
.projects{
    flex: 50%;
    height: 500px;   
    text-decoration: none; 
    color: black;
}
.container{
    border: medium solid black;
    height: 400px;
    width: 300px;
    margin: auto;
    padding: 10px;
}

header{
    text-align: center;
}
.container:nth-child(1):hover{
    box-shadow: 5px 5px 10px black;
    text-decoration: none;
}
a:visited{
    text-decoration: none;
}