body{
  font-family: arial;
  width: 100%;
  min-height: 100vh;
  background: linear-gradient(145deg, #ff242455,#1bffff);
}
.container{
  background-color: aqua;
  width: 450px;
  padding-bottom: 10px;
  margin: 100px auto 50px;
  border-radius: 20px;

}
.container-head{
  display: flex;
  align-items: center;
}
.logo-name{
  margin-left: 10px;
  margin-right: 10px;
}
.logo{
  width: 40px;
  height: 40px;
}
.my-name{
  font-size: 10px;
  font-family: cursive;
}
.input-and-button{
  display: flex;
  justify-content: space-between;
  background-color: rgb(255, 255, 255);
  margin-left: 10px;
  margin-right: 10px;
  border-radius: 13px;
}

#js-input{
  border: none;
  outline: none;
  background: transparent;
  flex: 1;
  padding: 10px;
  margin-left: 10px;
  cursor:text;
}

.js-button{
  font-size: 16px;
  background-color: orange;
  border: none;
  padding: 10px 20px 10px 20px;
  border-radius: 13px;
  cursor: pointer;
}
ul li{
  list-style: none;
  font-size: 18px;
  padding: 12px 8px 12px 50px;
  user-select: none;
  cursor: pointer;
  position: relative;
}
ul li::before{
  content: '';
  position: absolute;
  width: 25px;
  height: 25px;
  border-radius: 50%;
  background-image: url(./pics/unchecked.png);
  background-size: cover;
  background-position: center;
  left: 8px;
}
ul li.checked{
  text-decoration: line-through;
}
ul li.checked::before{
  background-image: url(./pics/checked.png);
}
ul li span{
  position: absolute;
  right: 9px;
  background-color: beige;
  width: 25px;
  height: 25px;
  text-align: center;
  border-radius: 50%;
  padding: 2px 2px 0px 2px;
  font-size: larger;
  
}
ul li span:hover{
  box-shadow: 0px 0px 11px rgba(0, 0, 0, 0.70);
}
@media (300px <= width <= 600px){
  body{
    font-family: arial;
    width: 100%;
    min-height: 100vh;
    background-color: black;
    background: linear-gradient(145deg, #ff242455,#1bffff);
  }
  .container{
    background-color: aqua;
    left: 0;
    right: 0;
    width: 300px;
    padding-bottom: 10px;
    margin: 100px auto 50px;
    border-radius: 20px;
  
  }
}