*, *:before, *:after {
  -webkit-box-sizing: border-box;
          box-sizing: border-box;

  -webkit-tap-highlight-color: rgba(0,0,0,0) !important;
  -webkit-tap-highlight-color: transparent !important;
  -ms-touch-action: manipulation;
      touch-action: manipulation;
}

/* Enforce the hidden attribute */
[hidden] {
  display: none !important;
}

/* Remove margins on text */
h1, h2, h3, h4, p, a {
  margin: 0;
}

/* Style links */
a {
  text-decoration: none;
}

/* Remove white border on bottom of images */
img {
  display: block;
}

/* Set form width */
form {
  flex: 1;
}