#box{
    width: 300px;
    height: 300px;
    background: seagreen;
    padding: 40px;
    margin: 10px;
    float: left;
    box-sizing: border-box; /* KEEP THE BOX SIZE EVEN CHANGING THE PADDING*/
    /* -webkit-box-sizing:           USED FOR PREVIOUS VERSIONS OF CRHOME
        -moz-box-sizing:             USED FOR PREVIOUS VERSIONS OF MOZILA */
    border-radius: 20px 80px;
    /* -webkit-border-radius:           USED FOR PREVIOUS VERSIONS OF CRHOME
        -moz-border-radius:             USED FOR PREVIOUS VERSIONS OF MOZILA  */
}