body{
  margin: 20px;
}

.divBusca{
  background-color:#2F4F4F;
  border:solid 1px;
  border-radius:15px;
  width:300px;
  position: fixed;
}

.txtBusca{
  float:left;
  background-color:transparent;
  padding-left:5px;
  font-style:italic;
  font-size:18px;
  border:none;
  height:32px;
  width:260px;
}

.box1 {
  border: 1px solid;
  width: 200px;
  height: 200px;
  background: green;
  position: static;
}

.box2 {
  border: 1px solid;
  width: 200px;
  height: 200px;
  background: yellow;
  position: relative;
}

.box3 {
  border: 1px solid;
  width: 200px;
  height: 200px;
  background: red;
  position: absolute;
  left: 300px;
  top: 100px;
}

.box4 {
  border: 1px solid;
  width: 200px;
  height: 200px;
  background: blue;
  position: fixed;
  left: 500px;
  top: 370px;
}

.box5 {
  border: 1px solid;
  width: 200px;
  height: 200px;
  background: purple;
  position: sticky;
}