body { padding-top: 50px; padding-bottom: 20px; }

.btn-link {
    border: none;
    outline: none;
    background: none;
    cursor: pointer;
    color: #0000EE;
    padding: 0;
    text-decoration: underline;
    font-family: inherit;
    font-size: inherit;
}
.lds-ellipsis {
  display: inline-block;
  position: relative;
  width: 80px;
  height: 80px;
}
.lds-ellipsis div {
  position: absolute;
  top: 33px;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: #000;
  animation-timing-function: cubic-bezier(0, 1, 1, 0);
}
.lds-ellipsis div:nth-child(1) {
  left: 8px;
  animation: lds-ellipsis1 0.6s infinite;
}
.lds-ellipsis div:nth-child(2) {
  left: 8px;
  animation: lds-ellipsis2 0.6s infinite;
}
.lds-ellipsis div:nth-child(3) {
  left: 32px;
  animation: lds-ellipsis2 0.6s infinite;
}
.lds-ellipsis div:nth-child(4) {
  left: 56px;
  animation: lds-ellipsis3 0.6s infinite;
}
@keyframes lds-ellipsis1 {
  0% {
    transform: scale(0);
  }
  100% {
    transform: scale(1);
  }
}
@keyframes lds-ellipsis3 {
  0% {
    transform: scale(1);
  }
  100% {
    transform: scale(0);
  }
}
@keyframes lds-ellipsis2 {
  0% {
    transform: translate(0, 0);
  }
  100% {
    transform: translate(24px, 0);
  }
}

/*!
 * IE10 viewport hack for Surface/desktop Windows 8 bug
 * Copyright 2014-2019 Twitter, Inc.
 * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
 */
@-ms-viewport {
  width: device-width;
}
@-o-viewport {
  width: device-width;
}
@viewport {
  width: device-width;
}



.progress {
    position: relative;
}

.progress span {
    position: absolute;
    display: block;
    width: 100%;
    color: black;
 }


 .shaking-button {
  animation: shake 4.72s ease infinite;
 }

 @keyframes shake {
   0% { transform:translate(0,0) }
    1.78571% { transform:translate(3px,0) }
    3.57143% { transform:translate(0,0) }
    5.35714% { transform:translate(3px,0) }
    7.14286% { transform:translate(0,0) }
    8.92857% { transform:translate(3px,0) }
    10.71429% { transform:translate(0,0) }
    100% { transform:translate(0,0) }

 }