body {
  /*font-family: Arial, Helvetica, sans-serif;*/
  max-height: 100vh;
  overflow: auto;
  position: relative;
  max-width: 100vw;
}

/*p{*/
/*    text-align: center;*/
/*}*/
#readme {
  max-width: 100vw;
}

.ui2-dialog {
  position: fixed !important;
}

.ui2-dialog .ui2-dialog-content {
  padding: 0 !important;
  overflow: hidden !important;
  max-width: 100%;
  max-height: calc(100% - 40px) !important;
  transition: 0.3s ease;
}

/* maximize */
.ui2-dialog.maximized {
  left: 0 !important;
  top: 0 !important;
  width: calc(100vw - 8px) !important;
  height: calc(100vh - 8px) !important;
}

.ui2-dialog.maximized .ui2-dialog-content {
  height: calc(100vh - 40px) !important;
  transition: 0.3s ease;
}

/* minimize */
.ui2-dialog.minimized {
  top: calc(100vh - 150px) !important;
  width: 30px !important;
  left: auto !important;
  right: 20px !important;
  transition: 0.3s ease;
}

.ui2-dialog.minimized .ui2-dialog-content {
  height: 0 !important;
  /* display: none; */
  transition: 0.3s ease;
}

.ui2-dialog.minimized .ui2-dialog-title {
  display: none;
  transition: 0.3s ease;
}

.ui2-dialog.minimized .ui2-dialog-titlebar {
  border: none !important;
  background-color: #fff !important;
  transition: 0.3s ease;
}

.ui2-dialog.minimized #minimize-button {
  position: absolute;
  top: 0;
  right: -6px !important;
  z-index: 1000;
  transition: 0.3s ease;
}

.callButtonBackground,
.callButtonBackground:hover,
.callButtonBackground:focus {
  /* background-image: url("icons/free-icon-phone-call-5585856.png"); */
  background-image: url('icons/free-icon-phone-8863352.png');
  /* background-image: url("icons/free-icon-phone-8863367.png"); */
  /* background-image: url("icons/free-icon-forward-8863366.png"); */
  background-size: contain;
  width: 50px !important;
  height: 50px !important;
  background-repeat: no-repeat;
  background-position: center center;
  border-radius: 50%;
  border: 1px solid #c5c5c5;
  background-color: #fff;
  border: none;
  transition: 0.3s ease;
  -webkit-box-shadow: -4px 2px 8px 0px rgba(34, 60, 80, 0.2);
  -moz-box-shadow: -4px 2px 8px 0px rgba(34, 60, 80, 0.2);
  box-shadow: -4px 2px 8px 0px rgba(34, 60, 80, 0.2);
}