.bd-placeholder-img {
      font-size: 1.125rem;
      text-anchor: middle;
      -webkit-user-select: none;
      -moz-user-select: none;
      -ms-user-select: none;
      user-select: none;
    }
    .borda-redonda{
        border-radius: 10px !important;
    }
    @media (min-width: 768px) {
      .bd-placeholder-img-lg {
        font-size: 3.5rem;
      }
    }
    
    html,
    body {
      height: 100%;
    }

    body {
      display: -ms-flexbox;
      display: flex;
      -ms-flex-align: center;
      align-items: center;
      padding-top: 40px;
      padding-bottom: 40px;
      background-color: #f5f5f5;
    }
    .img-efeito{
        -webkit-box-shadow: 1px 1px 10px 5px darkgray; 
        box-shadow: 1px 1px 10px 5px darkgray;
        border-radius: 10px;
        background-color: #666666;
        padding: 5px;
        height: 100px;
        
    }
    .form-signin {
      width: 100%;
      max-width: 350px;
      padding: 10px;
      margin: auto;
    }
    .form-signin .checkbox {
      font-weight: 400;
    }
    .form-signin .form-control {
      position: relative;
      box-sizing: border-box;
      height: auto;
      padding: 10px;
      font-size: 16px;
    }
    .form-signin .form-control:focus {
      z-index: 2;
    }
    .form-signin input[type="email"] {
      margin-bottom: -1px;
      border-bottom-right-radius: 0;
      border-bottom-left-radius: 0;
    }
    .form-signin input[type="password"] {
      margin-bottom: 10px;
      border-top-left-radius: 0;
      border-top-right-radius: 0;
    }