.content {
  background-color: rgba(159, 159, 159, 0.812);
  padding: 10px;
}

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

.navbar {
  width: 100%;
  background-color: #555;
  overflow: auto;
}

h1 {
  font-size: 50px;
  word-break: break-all;
}

.main{
  max-width: 1000px;
  margin: auto;
}
.navbar a {
  float: left;
  padding: 12px;
  color: white;
  text-decoration: none;
  font-size: 17px;
  width: 25%; /* Четыре ссылки одинаковой ширины */
  text-align: center;
}

.navbar a:hover {
  background-color: #000;
}

.navbar a.active {
  background-color: #000000;
}

.responsive {
  width: 100%;
  height: auto;
}

.column {
  float: left;
  width: 100%;

}


.row:after {
  content: "";
  display: table;
  clear: both;
}
* {
  box-sizing: border-box;
}

.column {
  float: left;
  width: 33.33%;
  padding: 3px;
}

.row,
.row > .column {
  padding: 8px;
} 

.row::after {
  content: "";
  clear: both;
  display: table;
}

/* Нижний левый текст */
.text-block {
  position: fixed;
  bottom: 0px;
  left: 16px;
  background-color: rgba(0, 0, 0, 0.308);
  color: white;
  padding-left: 20px;
  padding-right: 20px;
  
}

.row {
  display: flex;
  flex-wrap: wrap;
  padding: 0 4px;
}

hr {
  height: 3px;
  background-color: rgba(65, 63, 63, 0.5);
  margin-top: 20px;
}

footer {
  color: rgb(151, 151, 151);
  text-align: center;
  font-style: italic;
  margin-bottom: 20px;
}