<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.1.3/css/bootstrap.min.css">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.11.2/css/all.min.css">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome-animation/0.2.1/font-awesome-animation.min.css">

<section>
  <div class="square_box box_three"></div>
  <div class="square_box box_four"></div>
  <div class="container mt-5">
    <div class="row">

      <div class="col-sm-12">
        <div class="alert fade naarni-nkugas cationmes-desanug alert-dismissible text-left font__family-montserrat font__size-16 font__weight-light brk-library-rendered rendered show">
          <button type="button" class="close font__size-18" data-dismiss="alert">
         <span aria-hidden="true"><a href="https://www.youtube.com/watch?v=_XiOcsj3oNI&t=50s" target="_blank">
                    <i class="fa fa-times greencross"></i>
                    </a></span>
         <span class="sr-only">Close</span>
        </button>
          <i class="start-icon far fa-check-circle faa-tada animated"></i>
          <strong class="font__weight-semibold">Отлично сработано!</strong> Вы успешно прочитали это важное.
        </div>
      </div>

      <div class="col-sm-12">
        <div class="alert fade naarni-nkugas meorma-onaugas alert-dismissible text-left font__family-montserrat font__size-16 font__weight-light brk-library-rendered rendered show" role="alert" data-brk-library="component__alert">
          <button type="button" class="close font__size-18" data-dismiss="alert">
         <span aria-hidden="true">
                              <i class="fa fa-times blue-cross"></i>
         </span>
         <span class="sr-only">Close</span>
        </button>
          <i class="start-icon  fa fa-info-circle faa-shake animated"></i>
          <strong class="font__weight-semibold">Берегись!</strong> Это предупреждение требует вашего внимания, но это не супер важно.
        </div>

      </div>

      <div class="col-sm-12">
        <div class="alert fade naarni-nkugas lopogas-sukugas alert-dismissible text-left font__family-montserrat font__size-16 font__weight-light brk-library-rendered rendered show" role="alert" data-brk-library="component__alert">
          <button type="button" class="close font__size-18" data-dismiss="alert">
         <span aria-hidden="true">
                              <i class="fa fa-times warning"></i>
         </span>
         <span class="sr-only">Close</span>
        </button>
          <i class="start-icon fa fa-exclamation-triangle faa-flash animated"></i>
          <strong class="font__weight-semibold">Предупреждение!</strong> Лучше проверь себя, ты не выглядишь слишком хорошо.
        </div>
      </div>

      <div class="col-sm-12">
        <div class="alert fade naarni-nkugas aweso-meugas alert-dismissible text-left font__family-montserrat font__size-16 font__weight-light brk-library-rendered rendered show" role="alert" data-brk-library="component__alert">
          <button type="button" class="close font__size-18" data-dismiss="alert">
         <span aria-hidden="true">
                              <i class="fa fa-times danger "></i>
         </span>
         <span class="sr-only">Close</span>
        </button>
          <i class="start-icon far fa-times-circle faa-pulse animated"></i>
          <strong class="font__weight-semibold">О, хватит!</strong> Измените несколько вещей и попробуйте отправить снова.
        </div>
      </div>

      <div class="col-sm-12">
        <div class="alert fade naarni-nkugas alert-primary alert-dismissible text-left font__family-montserrat font__size-16 font__weight-light brk-library-rendered rendered show" role="alert" data-brk-library="component__alert">
          <button type="button" class="close font__size-18" data-dismiss="alert">
         <span  aria-hidden="true"><i class="fa fa-times customizugas"></i></span>
         <span class="sr-only">Close</span>
        </button>
          <i class="start-icon fa fa-thumbs-up faa-bounce animated"></i>
          <strong class="font__weight-semibold">Отлично сработано!</strong> Вы успешно прочитали это важное.
        </div>

      </div>

    </div>
  </div>
</section>

body
{
  background: #000e29;
}

.alert>.start-icon {
    margin-right: 0;
    min-width: 20px;
    text-align: center;
}

.alert>.start-icon {
    margin-right: 5px;
}

.greencross
{
  font-size:18px;
      color: #25ff0b;
    text-shadow: none;
}

.naarni-nkugas.cationmes-desanug
{
  border: 1px solid rgba(36, 241, 6, 0.46);
    background-color: rgba(7, 149, 66, 0.12156862745098039);
    box-shadow: 0px 0px 2px #259c08;
    color: #0ad406;
  text-shadow: 2px 1px #00040a;
  transition:0.5s;
  cursor:pointer;
}
.cationmes-desanug:hover{
  background-color: rgba(7, 149, 66, 0.35);
  transition:0.5s;
}
.naarni-nkugas.meorma-onaugas
{
  border: 1px solid rgba(6, 44, 241, 0.46);
    background-color: rgba(7, 73, 149, 0.12156862745098039);
    box-shadow: 0px 0px 2px #0396ff;
    color: #0396ff;
  text-shadow: 2px 1px #00040a;
  transition:0.5s;
  cursor:pointer;
}

.meorma-onaugas:hover
{
  background-color: rgba(7, 73, 149, 0.35);
  transition:0.5s;
}

.blue-cross
{
  font-size: 18px;
    color: #0bd2ff;
    text-shadow: none;
}

.naarni-nkugas.lopogas-sukugas
{
      border: 1px solid rgba(241, 142, 6, 0.81);
    background-color: rgba(220, 128, 1, 0.16);
    box-shadow: 0px 0px 2px #ffb103;
    color: #ffb103;
    text-shadow: 2px 1px #00040a;
  transition:0.5s;
  cursor:pointer;
}

.lopogas-sukugas:hover{
  background-color: rgba(220, 128, 1, 0.33);
  transition:0.5s;
}

.warning
{
      font-size: 18px;
    color: #ffb40b;
    text-shadow: none;
}

.naarni-nkugas.aweso-meugas
{
  border: 1px solid rgba(241, 6, 6, 0.81);
    background-color: rgba(220, 17, 1, 0.16);
    box-shadow: 0px 0px 2px #ff0303;
    color: #ff0303;
    text-shadow: 2px 1px #00040a;
  transition:0.5s;
  cursor:pointer;
}

.aweso-meugas:hover
{
     background-color: rgba(220, 17, 1, 0.33);
  transition:0.5s;
}

.danger
{
      font-size: 18px;
    color: #ff0303;
    text-shadow: none;
}

.naarni-nkugas.alert-primary
{
  border: 1px solid rgba(6, 241, 226, 0.81);
    background-color: rgba(1, 204, 220, 0.16);
    box-shadow: 0px 0px 2px #03fff5;
    color: #03d0ff;
    text-shadow: 2px 1px #00040a;
  transition:0.5s;
  cursor:pointer;
}

.alert-primary:hover{
  background-color: rgba(1, 204, 220, 0.33);
   transition:0.5s;
}

.customizugas
{
      font-size: 18px;
    color: #03d0ff;
    text-shadow: none;
}

.square_box {
    position: absolute;
    -webkit-transform: rotate(45deg);
    -ms-transform: rotate(45deg);
    transform: rotate(45deg);
    border-top-left-radius: 45px;
    opacity: 0.302;
}

.square_box.box_three {
    background-image: -moz-linear-gradient(-90deg, #290a59 0%, #3d57f4 100%);
    background-image: -webkit-linear-gradient(-90deg, #290a59 0%, #3d57f4 100%);
    background-image: -ms-linear-gradient(-90deg, #290a59 0%, #3d57f4 100%);
    opacity: 0.059;
    left: -80px;
    top: -60px;
    width: 500px;
    height: 500px;
    border-radius: 45px;
}

.square_box.box_four {
    background-image: -moz-linear-gradient(-90deg, #290a59 0%, #3d57f4 100%);
    background-image: -webkit-linear-gradient(-90deg, #290a59 0%, #3d57f4 100%);
    background-image: -ms-linear-gradient(-90deg, #290a59 0%, #3d57f4 100%);
    opacity: 0.059;
    left: 150px;
    top: -25px;
    width: 550px;
    height: 550px;
    border-radius: 45px;
}

.alert:before {
    content: '';
    position: absolute;
    width: 0;
    height: calc(100% - 44px);
    border-left: 1px solid;
    border-right: 2px solid;
    border-bottom-right-radius: 3px;
    border-top-right-radius: 3px;
    left: 0;
    top: 50%;
    transform: translate(0,-50%);
      height: 20px;
}

.fa-times
{
-webkit-animation: blink-1 2s infinite both;
         animation: blink-1 2s infinite both;
}

/**
* ----------------------------------------
* animation blink-1
* ----------------------------------------
*/
@-webkit-keyframes blink-1 {
  0%,
  50%,
  100% {
    opacity: 1;
  }
  25%,
  75% {
    opacity: 0;
  }
}
@keyframes blink-1 {
  0%,
  50%,
  100% {
    opacity: 1;
  }
  25%,
  75% {
    opacity: 0;
  }
}