*{
  font-family: helvetica, arial;
  box-sizing: border-box;
  color: #263D44;
}
.app{
  background: #263D44;
  width: 40%;
  margin: 0 auto 50px auto;
  padding: 13px;
  margin-top: 0;
  border-radius: 20px;
}
body{
  margin-top: -30px;
}
button{
  width: 25%;
  background-color: #84B59F;
  outline: none;
  font-weight: 1000;
  font-size: 0.75em;
  border-bottom: solid 3px #69A297;
border-left: none;
  border-right: solid 1px #579B98;
}
button:hover{
  background-color: #A3C9A8;
}
.lb{
  border-radius: 10px 0 0 0;
}
.rb{
  border-radius: 0 10px 0 0;
}

.flex{
  display: flex;
  justify-content: space-between;

  height: 40px;

}

.title{
  position: absolute;
  margin: 0;
  top: 0;
  left: 0;
  padding: 20px 30px;
  width: 315px;
  background: #84B59F;
  border-radius: 0 0 90px 0 ;
  border-bottom: solid 5px #263D44;
}

textarea{
  width: 100%;
  padding: 20px;
  font-size: 1em;
  resize: none;
  outline: none;
}

h1 {
  text-align: center;
  margin-top: 130px;
}


.article {
  padding: 0 10% 3% 20%;
}

a {
  color:blue;
}