* {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
}

body {
  font-family: Arial, Helvetica, sans-serif;
  margin: 0;
  padding: 0;
}


header {
  background-color: #fdf8f8;
  padding: 0;
  text-align: center;
  font-size: 35px;
  color: rgb(39, 30, 30);
}
.logo_title{
  text-align: left;

}


@keyframes slide {
  20% {
    opacity: 0;
  }
  40% {
    opacity: 0;
  }
}

.slider img:not(:first-child) {
  display: none;
}

.iarticle {
  float: left;
  padding: 0;
  width: 70%;
  background-color: #f1f1f1;
  height: 100%; 
}

iframe {
  border-color: black;
  position: relative;
  width: 100%;
  height: 1000px;
  border: 0;
  padding: 10px;
  
}


section::after {
  content: "";
  display: table;
  clear: both;
}


footer {
  background-color: #101010;
  padding: 20px;
  width:100%;
  justify-content: right;
  color: white;
}


@media (max-width: 400px) {
  header, nav.top, footer {
    width: 100%;
    height: 100%;
  }

  iframe {
    width: 100%;
    height: 500px;
  }
}