.img_res {
  max-width: 377px;
  width: 100%;
}

 .img_resp {
  max-width: 75%;
  width: 100%;
}
    
     .bd-placeholder-img {
        font-size: 1.125rem;
        text-anchor: middle;
        -webkit-user-select: none;
        -moz-user-select: none;
        user-select: none;
      }

      @media (min-width: 768px) {
        .bd-placeholder-img-lg {
          font-size: 3.5rem;
        }
      }

      .b-example-divider {
        width: 100%;
        height: 3rem;
        background-color: rgba(0, 0, 0, .1);
        border: solid rgba(0, 0, 0, .15);
        border-width: 1px 0;
        box-shadow: inset 0 .5em 1.5em rgba(0, 0, 0, .1), inset 0 .125em .5em rgba(0, 0, 0, .15);
      }

      .b-example-vr {
        flex-shrink: 0;
        width: 1.5rem;
        height: 100vh;
      }

      .bi {
        vertical-align: -.125em;
        fill: currentColor;
      }

      .nav-scroller {
        position: relative;
        z-index: 2;
        height: 2.75rem;
        overflow-y: hidden;
      }

      .nav-scroller .nav {
        display: flex;
        flex-wrap: nowrap;
        padding-bottom: 1rem;
        margin-top: -1px;
        overflow-x: auto;
        text-align: center;
        white-space: nowrap;
        -webkit-overflow-scrolling: touch;
      }

      .btn-bd-primary {
        --bd-violet-bg: #712cf9;
        --bd-violet-rgb: 112.520718, 44.062154, 249.437846;

        --bs-btn-font-weight: 600;
        --bs-btn-color: var(--bs-white);
        --bs-btn-bg: var(--bd-violet-bg);
        --bs-btn-border-color: var(--bd-violet-bg);
        --bs-btn-hover-color: var(--bs-white);
        --bs-btn-hover-bg: #6528e0;
        --bs-btn-hover-border-color: #6528e0;
        --bs-btn-focus-shadow-rgb: var(--bd-violet-rgb);
        --bs-btn-active-color: var(--bs-btn-hover-color);
        --bs-btn-active-bg: #5a23c8;
        --bs-btn-active-border-color: #5a23c8;
      }

      .bd-mode-toggle {
        z-index: 1500;
      }

      .bd-mode-toggle .dropdown-menu .active .bi {
        display: block !important;
      }
    
.link-no-u { 
  text-decoration: none; 
} 

.container-main {
  max-width: 75%;
  margin: auto;
}

.feature-icon {
  width: 4rem;
  height: 4rem;
  border-radius: .75rem;
}

.icon-square {
  width: 3rem;
  height: 3rem;
  border-radius: .75rem;
}

.text-shadow-1 { text-shadow: 0 .125rem .25rem rgba(0, 0, 0, .25); }
.text-shadow-2 { text-shadow: 0 .25rem .5rem rgba(0, 0, 0, .25); }
.text-shadow-3 { text-shadow: 0 .5rem 1.5rem rgba(0, 0, 0, .25); }

.card-cover {
  background-repeat: no-repeat;
  background-position: center center;
  background-size: cover;
}

.feature-icon-small {
  width: 3rem;
  height: 3rem;
}

.responsive {
  width: 100%;
  max-width: 150px;
  height: auto;
}

.bg-kos {
    background-color: white;
    color: black;
}

.nav-item {
    color: black;
}

.nav-link {
   color: black; 
}

.navbar-toggler
{
     color: black; 
}



.collapse navbar-collapse
{
     color: blue; 
}

.bg-kos .navbar-toggler-icon {
  background-image: url("data:image/svg+xml;..");
}

.container-fluid
{
    max-width: 90%;
}

.nav > li > a:hover{
    background-color:#FCC;
}

.navbar-nav .nav-item .nav-link {
    color: blue;
}
.navbar-nav .nav-item.active .nav-link,
.navbar-nav .nav-item:hover .nav-link {
    color: red;
}

ul.nav a:hover { color: #000 !important; }