#container {
    max-width:900px;
    margin:0 auto;
    height: auto;
    background-color:aquamarine;
    margin-top:30px;
}
.wrapper {
     display:flex;
     flex-wrap:wrap;
     height:auto;
     width:100%;
    background-color:black;
}
 
.main-content {
    width:900px;
    height: auto;
    border: ridge 5px black;
    text-align: center;
}
.content {
    display: block;
    color: aliceblue;
}
  .txt{
     line-height:25px;
      letter-spacing: 1px;
        text-indent: 45px;
        text-align:center; 
      margin-right: 20px;
      margin-left: 70px;
      padding-left: 5px;
  }
.about-img {
    float:left;
    padding-right:5px;
}