body{
  box-sizing: border-box;
}
#bloc{
  position: relative;
  width: 40vw;
}

.images{
  background: orange;
  width: 20%;
  height: 150px;
  position: absolute;
  right: 0;
}


.texte-images{
  display: none;
  width: 80%;
  background: blue;
  height: 300px;
  overflow-x: scroll ;
  padding: 20px;
  padding-left: 30px;
}

input{
  position: absolute;
  right: 0;
  width: 20%;
  height: 150px;
  opacity: 0;
}
input:checked ~ .texte-images{
  display: block;
}