html {
    background: #ffffff;
}

.remote-streams video{
    width: 50%;
    height: 50%;
    codecs: VP8;
}

.btn-square-pop {
  position: relative;
  display: inline-block;
  padding: 0.25em 0.5em;
  text-decoration: none;
  color: #FFF;
  background: #fd9535;/*背景色*/
  border-bottom: solid 2px #d27d00;/*少し濃い目の色に*/
  border-radius: 6px;/*角の丸み*/
  box-shadow: inset 0 2px 0 rgba(255,255,255,0.2), 0 2px 2px rgba(0, 0, 0, 0.19);
  font-size: 1.2em;
  font-weight: bold;
}

.btn-square-pop:active {
  border-bottom: solid 2px #fd9535;
  box-shadow: 0 0 2px rgba(0, 0, 0, 0.30);
}


.styled {
    border: 0;
    line-height: 2.5;
    padding: 0 20px;
    font-size: 1.2rem;
    text-align: center;
    color: #fff;
    text-shadow: 1px 1px 1px #000;
    border-radius: 10px;
    background-color: rgba(220, 0, 0, 1);
    background-image: linear-gradient(to top left,
                                      rgba(0, 0, 0, .2),
                                      rgba(0, 0, 0, .2) 30%,
                                      rgba(0, 0, 0, 0));
    box-shadow: inset 2px 2px 3px rgba(255, 255, 255, .6),
                inset -2px -2px 3px rgba(0, 0, 0, .6);
}

.styled:hover {
    background-color: rgba(255, 0, 0, 1);
}

.styled:active {
    box-shadow: inset -2px -2px 3px rgba(255, 255, 255, .6),
                inset 2px 2px 3px rgba(0, 0, 0, .6);
}

a.btn-gradient {
  -webkit-transform: skew(-15deg);
  transform: skew(-15deg);
  color: #fff;
  border-radius: 0;
  background-image: -webkit-gradient(linear, left top, right top, from(#2af598), to(#009efd));
  background-image: -webkit-linear-gradient(left, #2af598 0%, #009efd 100%);
  background-image: linear-gradient(90deg, #2af598 0%, #009efd 100%);
  -webkit-box-shadow: 0 5px 10px rgba(0, 0, 0, .1);
  box-shadow: 0 5px 10px rgba(0, 0, 0, .1);
}

a.btn-gradient:hover {
  -webkit-transform: skew(0);
  transform: skew(0);
  color: #fff;
  -webkit-box-shadow: 0 2px 3px rgba(0, 0, 0, .1);
  box-shadow: 0 2px 3px rgba(0, 0, 0, .1);
}