.calendar {
  margin: 0px 80px 10px 80px; 
  border-style:solid;
  border-color:#000000;
  border-width:1px;
  background-color: #50c7db;
}
@media (max-width: 550px) {
    .big-container {
        display: none;
    }
}
@media (min-width: 550px) {
    .small-container {
        display: none;
    }
}
/* Responsive iFrame */
.responsive-iframe-container {
    position: relative;
    padding-bottom: 56.25%;
    padding-top: 30px;
    height: 0;
    overflow: hidden;
}
.responsive-iframe-container iframe,   
.vresponsive-iframe-container object,  
.vresponsive-iframe-container embed {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}