* { box-sizing: border-box }
body { 
    margin: 0;
    background:  #f3f2f1;
}
.container {
    max-width: 1000px;
    margin: auto;
    padding: 30px;
    /* border-radius: 10px;
    box-shadow: 0 0 10px #aaa; */
}
#logo {
    margin: auto;
    text-align: center;
}
#logo > img { width: 200px }
#lang { 
    display: flex;
    background: #e6e6e6;
    padding: 3px 0 0 0;
    justify-content: start;
}
#lang button { 
    background: none;
    padding: 4px 21px;
    border: none;
 }
#lang button.active {
    background: #fff;
    border-top: 2px solid #217346;

}
#lang button img { height: 1em  }
#welcome {
    min-height: 50vh;
    background: #fff;
    padding: 30px;
    /* border-radius: 10px;
    box-shadow: 0 0 10px #aaa; */
    font: normal 1em "Calibri", sans-serif;
    color: #444;
    transition: 1s;
}
#welcome h2 {
    color: #217346
}
#welcome a { 
    color: #888;
    text-decoration: underline; 
}