styleMainPage.css

* {
    margin: 0;
    padding: 0;
    font-family: montserrat, sans-serif;
    box-sizing: border-box;
  }
  .button-container {
    display: flex;
    width: 100%;
    min-height: 100vh;
    justify-content: center;
    align-items: center;
  }
  .button1 {
    appearance: none;
    background: none;
    border: none;
    outline: none;
    padding: 20px 40px;
    border-radius: 8px;
    color: #212121;
    font-size: 28px;
    font-weight: 600;
    margin: 0 15px;
    cursor: pointer;
    transition: 0.4s;
  }
  .button-animate {
    position: relative;
  }
  .button-animate:after {
    content: '';
    position: absolute;
    width: 0;
    height: 0;
    bottom: 0;
    right: 0;
    border-bottom: 3px solid #212121;
    border-right: 3px solid #212121;
    transition: all 0.4s, opacity 0.1s 0.4s;
    opacity: 0;
  }
  .button-animate:before {
    content: '';
    position: absolute;
    width: 0;
    height: 0;
    top: 0;
    left: 0;
    border-top: 3px solid #212121;
    border-left: 3px solid #212121;
    transition: all 0.4s, opacity 0.1s 0.4s;
    opacity: 0;
  }
  .button-animate:hover:after, .button-animate:hover:before {
    width: calc(100% + 15px);
    height: calc(100% + 15px);
    transition: all 0.4s, opacity 0.1s;
    opacity: 1;
  }

  .modal {
    display: none; 
    position: fixed; 
    z-index: 1; 
    padding-top: 100px;
    left: 0;
    top: 0;
    width: 100%; 
    height: 100%; 
    overflow: auto; 
    background-color: rgb(0,0,0);
    background-color: rgba(0,0,0,0.4); 
  }
  
  /* Modal Content */
  .modal-content {
    background-color: #fefefe;
    margin: auto;
    padding: 20px;
    border: 1px solid #888;
    width: 80%;
  }
  
  /* The Close Button */
  .close {
    color: #aaaaaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
  }
  
  .close:hover,
  .close:focus {
    color: #000;
    text-decoration: none;
    cursor: pointer;
  }