.btn-round{
  height: 40px;
  min-width: 40px;
  width: 40px;

  border-radius: 50%;
  font-size: 24px;
  margin: auto;
  padding: 0;
  overflow: hidden;
  position: relative;
  line-height: normal;

  background-color: #9c27b0;
  color: #FFFFFF;

  box-shadow: 0 2px 2px 0 rgba(156, 39, 176, 0.14), 0 3px 1px -2px rgba(156, 39, 176, 0.2), 0 1px 5px 0 rgba(156, 39, 176, 0.12);

  border: none;

  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0;
  will-change: box-shadow, transform;
  transition: box-shadow 0.2s cubic-bezier(0.4, 0, 1, 1), background-color 0.2s cubic-bezier(0.4, 0, 0.2, 1);

  display: inline-block;
  text-align: center;
  vertical-align: middle;

  touch-action: manipulation;
  cursor: pointer;
  background-image: none;

  white-space: nowrap;
  -webkit-user-select: none;

  box-sizing: border-box;
  font-family: "Roboto", "Helvetica", "Arial", sans-serif;
  box-sizing: border-box;
}

.btn-round:active {
  box-shadow: 0 14px 26px -12px rgba(156, 39, 176, 0.42), 0 4px 23px 0px rgba(0, 0, 0, 0.12), 0 8px 10px -5px rgba(156, 39, 176, 0.2);
  background-color: #9c27b0;
  color: #FFFFFF;
  outline: 0;
}
.btn-round:hover {
  box-shadow: 0 14px 26px -12px rgba(156, 39, 176, 0.42), 0 4px 23px 0px rgba(0, 0, 0, 0.12), 0 8px 10px -5px rgba(156, 39, 176, 0.2);
  background-color: #9c27b0;
  color: #FFFFFF;
}
.btn-round:focus {
  box-shadow: 0 14px 26px -12px rgba(156, 39, 176, 0.42), 0 4px 23px 0px rgba(0, 0, 0, 0.12), 0 8px 10px -5px rgba(156, 39, 176, 0.2);
  background-color: #9c27b0;
  color: #FFFFFF;
}
.btn-round .material-icons {
  font-size: 17px; /* NOTE: ???????????? */
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-12px, -12px);
  line-height: 24px;
  width: 24px;
  vertical-align: middle;
  margin: 0;
  padding: 0;
  border: 0;
  box-sizing: border-box;
    font-style: italic;
}


.btn{
  text-decoration: none;
  /* NOTE: .btn-primary */
  font-size: .7rem;
  padding: .85rem 2.13rem;
  border-radius: 2px;
  /* NOTE:  border-radius: 10em;*/
  border: 0;
  /* NOTE:  color: #fff!important; */
  color: #fff;
  margin: 6px;
  white-space: normal!important; /* NOTE: ??????????? */
  text-transform: uppercase;
  transition: .2s ease-out;

  /* NOTE: .waves-effect */
  position: relative;
  cursor: pointer;
  overflow: hidden;
  -webkit-user-select: none; /* NOTE: ??????????? */
  z-index: 1;
  /* NOTE: /.waves-effect */

  box-shadow: 0 2px 5px 0 rgba(0,0,0,.16),0 2px 10px 0 rgba(0,0,0,.12);

  word-wrap: break-word; /* NOTE: ??????????? */

  -webkit-tap-highlight-color: transparent; /* NOTE: .waves-effect */



  border-color: #0275d8; /* NOTE: .btn-primary */

  display: inline-block;
  font-weight: 400;
  line-height: 1.25;
  text-align: center;
  vertical-align: middle;
  font-family: Roboto,sans-serif;
  box-sizing: border-box;


    touch-action: manipulation; /* NOTE: ??????????? */
}


.btn:active, .btn:focus, .btn:hover{
  box-shadow: 0 5px 11px 0 rgba(0,0,0,.18),0 4px 15px 0 rgba(0,0,0,.15);
}


.btn-primary {
 background: #4285F4;
}

.btn-primary:active, .btn-primary:focus, .btn-primary:hover{
  background-color: #5a95f5!important; /* NOTE: светло синий */
}

.btn-success {
  /* NOTE:  background: #4caf50; Зеленый тот что на логотипе(теменее)*/
  background: #00C851;

}

.btn-success:active, .btn-success:focus, .btn-success:hover{
  background-color: #00d255!important;
}

.btn-secondary {
  background-color:#a6c;
}

.btn-secondary:active, .btn-secondary:focus, .btn-secondary:hover{
  background-color: #b579d2!important;
}

.btn-yellow {
  background-color:#fbc02d;
}

.btn-yellow:active, .btn-yellow:focus, .btn-yellow:hover{
  background-color: #fbc846!important;
}

/* NOTE: кнопки отличаются только цветом и цветом при наведении (тени одинаковые) */


/* NOTE:/тень у панели навигации такая же как при наведении у кнопки*/


.nav_horizontal {
   border-radius: 3px;
   box-shadow: 0 5px 11px 0 rgba(0,0,0,.18),0 4px 15px 0 rgba(0,0,0,.15);
   background-color: #4285F4;
   padding: 10px;
   font-size: 14px;
   margin-left: 20px;
   font-family: Roboto,sans-serif;
   float: left;
   margin-bottom: 10px;
}
.round {
  border-radius: 50%;
}