style.css

 body{
  margin: 0;
  font-family: 'Rubik',sans-serif;
  background: #111;
  min-height: 100vh;
}
* {
box-sizing: border-box;
}
h1,h3{
  font-weight: 400;
}
.weather-app{
  min-height: 100vh;
  background-image: url(./images/day/cloudy.jpg);
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  color: #fff;
  position: relative;
  transition: 500ms;
  opacity: 1;
}
.weather-app::before{
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.3);
  z-index: 0;
}
  .container{
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
   display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-direction: column;
  padding: 2em 3em 4em 3em;
}
.container>div{
  display: flex;
  justify-content: center;
  align-items: center;
}
.city-time, .temp, .weather{
margin: 0 1em;
}
.city-time h1{
  margin: 0;
  margin-bottom: 0.2em;
  font-size: 3em;
}
.temp{
  font-size: 7em;
  margin: 0;
}

.weather img{
  display : block;
  margin: 0.5em 0;
}
.panel{
  position: absolute;
  width: 40%;
  height: 100%;
  top: 0;
  right: 0;
  background: rgba(110,110,110,0.25);
  box-shadow: 0 0.5rem 2rem 0
  rgba(0,0,0,0.3);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border:
  1px solid
  rgba(255,255,255,0.18);
  z-index: 1;
  padding: 3em 2em;
  overflow-y: scroll;
}
.panel form {
  margin-bottom: 3em;
}
.submit{
  position: absolute;
  top: 0;
  right: 0;
  padding: 1.5em;
  margin: 0;
  border: none;
  outline: none;
  background: #fa6d1b;
  color: #fff;
  cursor: pointer;
  font-size: 1.2em;
  transition: 0.4s;
}
.submit:hover{
  background: #fff !important;
  color: #000;
}
.search{
  background: none;
  border: none;
  border-bottom: 1px #ccc solid;
  padding: 0 1em 0.5em 0;
  width: 80%
  color: #fff;
  font-size: 1.1em;
}

.searchBar input{
  color: white;
}
.search:focus{
  outline: none;
}


.search::placeholder{
  color: #ccc;
}
.panel ul{
  padding: 0 0 1em 0;
  margin: 2em 0;
  border-bottom: 1px #ccc solid;
}
.panel ul li{
  color: #ccc;
  margin: 2.5em 0;
}
.panel ul h4{
  margin: 3em 0;
}
.city{
  display: block;
  cursor: pointer;
}
.city:hover{
  color: #fff;
  font-size: 1.2em;
}
.details li{
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.footlove{
  color: white;
  position: sticky;
  top: 95%;
  text-align: center;
  opacity: 0.5;
}

@media screen and (max-width: 800px) { /*800,500,300*/

.panel, .container{
/* font-size: 50em; */
  position: relative;
  width: 100%;

  top: initial;
}
}
@media screen and ( max-width: 500px){
  html{
    font-size: 20px;
  }
}
@media screen and (max-width: 300px) {
  .weather-app{
    min-height: 40em;
  }

}