react-js-loading-progress-bar/src/progress.css

React JS loading progress (bar and throbber) component that shows estimated time left (if several requests need to be made) and progress bar with percentage.

progress {
	height: 14px;
	/* Important Thing */
	-webkit-appearance: none;
	border: none;
  margin-right: 5px;


  background-image:
	   -webkit-linear-gradient(-45deg,
	                           transparent 33%, rgba(0, 0, 0, .1) 33%,
	                           rgba(0,0, 0, .1) 66%, transparent 66%),
	   -webkit-linear-gradient(top,
	                           rgba(255, 255, 255, .25),
	                           rgba(0, 0, 0, .25)),
	   -webkit-linear-gradient(left, #38bcc3, #38bcc3);
}

progress::-webkit-progress-bar {
  background-color: #eee;
  border-radius: 2px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.25) inset;
}

progress[value]::-webkit-progress-bar {
  background-color: #eee;
  border-radius: 2px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.25) inset;
}

progress[value]::-webkit-progress-value {
  background-image:
	   -webkit-linear-gradient(-45deg,
	                           transparent 33%, rgba(0, 0, 0, .1) 33%,
	                           rgba(0,0, 0, .1) 66%, transparent 66%),
	   -webkit-linear-gradient(top,
	                           rgba(255, 255, 255, .25),
	                           rgba(0, 0, 0, .25)),
	   -webkit-linear-gradient(left, #38bcc3, #38bcc3);


    border-radius: 2px;
    background-size: 35px 20px, 100% 100%, 100% 100%;
}

/* Now the value part */
progress::-webkit-progress-value {
  background-image:
	   -webkit-linear-gradient(-45deg,
	                           transparent 33%, rgba(0, 0, 0, .1) 33%,
	                           rgba(0,0, 0, .1) 66%, transparent 66%),
	   -webkit-linear-gradient(top,
	                           rgba(255, 255, 255, .25),
	                           rgba(0, 0, 0, .25)),
	   -webkit-linear-gradient(left, #38bcc3, #38bcc3);


    border-radius: 2px;
    background-size: 35px 20px, 100% 100%, 100% 100%;
}


.loader {
  border: 3px solid #f3f3f3;
  border-top: 3px solid #3498db;
  border-radius: 50%;
  width: 20px;
  height: 20px;
  -webkit-animation: spin 1s linear infinite;
  animation: spin 1s linear infinite;
  margin: 0 5px;
  display: inline-flex;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}