* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background-color: #010142;
  font-family: "Saira", Arial, Helvetica, sans-serif;
}

h1 {
  margin: 30px 0px;
  color: #313131;
  font-size: 42px;
  font-weight: 900;
  text-align: center;
}

#div1{
    height:300px;
    width: 300px;
    background-color: white;
    border: 3px black solid;
    border-radius: 25px;
    position: relative;
    margin: auto;
}
#div1 p{
    color: black;
    font-weight: bolder;
    font-size: 20px;
    text-align: center;
    margin-top: 150px;
}

h1 span {
  font-weight: 300;
}

.date-picker {
  position: relative;
  width: 100%;
  max-width: 320px;
  height: 60px;
  background-color: #fff;
  margin: 30px auto;
  box-shadow: 0px 3px 10px rgba(0, 0, 0, 0.2);

  cursor: pointer;
  user-select: none;
}

.date-picker:hover {
  background-color: #f3f3f3;
}

.date-picker .selected-date {
  width: 100%;
  height: 100%;

  display: flex;
  justify-content: center;
  align-items: center;

  color: #313131;
  font-size: 28px;
}

.date-picker .dates {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;

  background-color: #fff;
}

.date-picker .dates.active {
  display: block;
}

.date-picker .dates .month {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 2px solid #eee;
}

.date-picker .dates .month .arrows {
  width: 35px;
  height: 35px;
  display: flex;
  justify-content: center;
  align-items: center;
  color: #313131;
  font-size: 20px;
}

.date-picker .dates .month .arrows:hover {
  background-color: #f3f3f3;
}

.date-picker .dates .month .arrows:active {
  background-color: #00ca85;
}

.date-picker .dates .days {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  height: 200px;
}
.date-picker .dates .days .day {
  display: flex;
  justify-content: center;
  align-items: center;
  color: #313131;
}
.date-picker .dates .days .day.selected {
  background-color: #00ca85;
}