select {
    background-color: white;
    border: thin solid blue;
    border-radius: 4px;
    display: inline-block;
    font: inherit;
    line-height: 1.5em;
    padding: 0.5em 3.5em 0.5em 1em;
    margin: 0;      
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    -webkit-appearance: none;
    -moz-appearance: none;
}
  
select.minimal {
    background-image:
      linear-gradient(45deg, transparent 50%, gray 50%),
      linear-gradient(135deg, gray 50%, transparent 50%),
      linear-gradient(to right, #ccc, #ccc);
    background-position:
      calc(100% - 20px) calc(1em + 2px),
      calc(100% - 15px) calc(1em + 2px),
      calc(100% - 2.5em) 0.5em;
    background-size:
      5px 5px,
      5px 5px,
      1px 1.5em;
    background-repeat: no-repeat;
}
  
select.minimal:focus {
    background-image:
      linear-gradient(45deg, green 50%, transparent 50%),
      linear-gradient(135deg, transparent 50%, green 50%),
      linear-gradient(to right, #ccc, #ccc);
    background-position:
      calc(100% - 15px) 1em,
      calc(100% - 20px) 1em,
      calc(100% - 2.5em) 0.5em;
    background-size:
      5px 5px,
      5px 5px,
      1px 1.5em;
    background-repeat: no-repeat;
    border-color: green;
    outline: 0;
}
  
select:-moz-focusring {
    color: transparent;
    text-shadow: 0 0 0 #000;
}

.input_box
{
    width: 50%;
    height: 5%;
    font-size: 18px;
    position: relative;
}

.changing-button {
    padding: 0.6em 2em;
    border: none;
    outline: none;
    color: rgb(255, 255, 255);
    background: #111;
    cursor: pointer;
    position: relative;
    z-index: 0;
    border-radius: 10px;
    user-select: none;
    -webkit-user-select: none;
    touch-action: manipulation;
  }
  
  .changing-button:before {
      content: "";
      background: linear-gradient(
        45deg,
        #ff0000,
        #ff7300,
        #fffb00,
        #48ff00,
        #00ffd5,
        #002bff,
        #7a00ff,
        #ff00c8,
        #ff0000
      );
      position: absolute;
      top: -2px;
      left: -2px;
      background-size: 400%;
      z-index: -1;
      filter: blur(5px);
      -webkit-filter: blur(5px);
      width: calc(100% + 4px);
      height: calc(100% + 4px);
      animation: glowing-changing-button 20s linear infinite;
      transition: opacity 0.3s ease-in-out;
      border-radius: 10px;
}
  
@keyframes glowing-changing-button {
    0% {
      background-position: 0 0;
    }
    50% {
      background-position: 400% 0;
    }
    100% {
      background-position: 0 0;
    }
}
  
.changing-button:after {
    z-index: -1;
    content: "";
    position: absolute;
    width: 100%;
    height: 100%;
    background: #222;
    left: 0;
    top: 0;
    border-radius: 10px;
}

body {
  background-color:aliceblue;
}

td {
  border-bottom: 1px solid #ccc;
  border-left: 1px solid #ccc;
  border-right: 1px solid #ccc;
  border-top: 1px solid #ccc;
}