/* all div  */
div {
float: left;
clear: both;
}

/*select img tag and control it*/
img {
  width: 50%;
  border-radius: 30px;
  margin-left: 25%;
  margin-right: 25%;
  float: left;
}
/*gift from mr rowe*/

#container {   
  background-color:midnightblue;
  width: 80%;
  margin-bottom: 40px;
  margin-left:10%;
  /*sideline */
}
/* you were missing the } bracket  */

.headerofmenus{
background-color:darkslateblue;
width:90%;
margin-left: 5%;
}


.minimenubox {
background-color: lightsteelblue;
height: 50px;    
font-size: 3vw;
width: 16%;
margin-left:5%;
clear: none;
padding-bottom: 1vh;
padding-left: 1vw;
}




.contentholder {
background-color:lightblue;
width: 68%;
margin: 10%;
padding: 5%;
/* width budget is 100% */
margin-top: 30px;
font-size: 6vh;
}