th,
td {
  padding: 5px;
  text-align: left;
  border-bottom: 1px solid #ddd;
}

.style_title{
  color:rgb(96,96,96);
  font-size:medium;
}


tr:nth-child(even) {
  background-color: #f2f2f2;
}
.exercices{
  text-align: center;
}

.color_text{
  color: #1B3168;
}

.section_column{
  border-spacing: 0;
  border: solid 1px #ddd;
  border-radius: 10px;
}

.section_title_column_left{
  border-top-left-radius: 10px;
  
}


.pagination a:active {
  background-color: #405fac;
  color: white;
}