* {
    box-sizing: border-box;
  }
  
  /* Add a gray background color with some padding */
  body {
    font-family: Arial;
    padding: 20px;
    background: #f1f1f1;
  }
  
  /* Header/Blog Title */
  .header {
    padding: 30px;
    font-size: 40px;
    text-align: center;
    background: brown;
  }
  
  /* Create two unequal columns that floats next to each other */
  /* Left column */
  .leftcolumn {   
    float: left;
    width: 75%;
  }
  
  /* Right column */
  .rightcolumn {
    float: left;
    width: 25%;
    padding-left: 20px;
  }

  .leftcolumn1 {
    float: left;
    width: 50%;
  }

  .centercolumn1 {
    float: left;
    width: 50%;
  }
  
  .rightcolumn1 {
    float: left;
    width: 100%;
  }
  
  /* Fake image */
  .fakeimg {
    background-color: #aaa;
    width: 100%;
    padding: 20px;
  }
  
  /* Add a card effect for articles */
  .card {
     background-color: yellowgreen;
     padding: 20px;
     margin-top: 20px;
  }
  
  /* Clear floats after the columns */
  .row:after {
    content: "";
    display: table;
    clear: both;
  }
  
  /* Footer */
  .footer {
    padding: 20px;
    text-align: center;
    background: #ddd;
    margin-top: 20px;
  }
  
  /* Responsive layout - when the screen is less than 800px wide, make the two columns stack on top of each other instead of next to each other */
  @media screen and (max-width: 800px) {
    .leftcolumn, .rightcolumn {   
      width: 100%;
      padding: 0;
    }
  }
  img, object, iframe, video {
    max-height: 100%;
    max-width: 100%;
  }

  nav.sitenav {
    color: #3f729b;
    text-align: center;
  }

  nav.sitenav p {
    display: inline-block;
    margin: 0.5em;
  }

  nav.sitenav a:hover, nav.sitenav a:focus {
    color: #ffffff;
  }

  a:link {
    color: black;
  }

  a:visited {
    color: #8b9dc3;
  }

  a:active {
    position: relative;
    top: 1px;
    left: 1px;
  }

  nav.sitenav a:link {
    text-decoration: none;
    color: #3f729b
  }

  table, th, td {
    border: 1px solid black;
  }
  
  .glow {
    font-size: 39px;
    color: #fff;
    font-weight: bold;
    animation: glow 1s ease-in-out infinite alternate;
    -moz-animation: glow 1s ease-in-out infinite alternate;
    -webkit-animation: glow 1s ease-in-out infinite alternate;
}
.blink {
  animation: blinker 1.5s linear infinite;
  color: red;
  font-size: 1.5em;
  /* Larger, responsive font size */
  margin-bottom: 20px;
}

@keyframes blinker {
  50% {
      opacity: 0;
  }
}

.prevent-select {
  user-select: none; /* supported by Chrome and Opera */
  -webkit-user-select: none; /* Safari */
  -khtml-user-select: none; /* Konqueror HTML */
  -moz-user-select: none; /* Firefox */
  -ms-user-select: none; /* Internet Explorer/Edge */
}