*{
    margin: 0;
    padding: 0;
}
span > img{
    width: 4vw;
}
div.title{
    display: flex;
}   
body{
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}
.container{
    
    max-width: 450px;
    background: #094a4a6d;
    border-radius: 8px;
    box-shadow: 0px 0px 15px 3px rgb(0,0,0,0.4);
    font-family: sans-serif;
    padding: 20px;
}
h1{
    font-size: 2rem;
    font-family: sans-serif;
    color: #293036;
    padding-top: 10px;
    font-weight: 700;
    text-shadow: #000;
}
#celsius, #fahrenheit, #kelvin {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 25px;
}
#new{
    padding: 20px 0;
    
}
input{
    flex: 5;
    height: 60px;
    font-size: 20px;
    font-weight: 600;
    text-align: center;
    border: none;
    outline: none;
    border-radius: 8px 0 0 8px;
    padding: 0 10px;
}
.icon{
    flex: 1;
    height: 60px;
    line-height: 60px;
    padding: 0 5px;
    text-align: center;
    font-size: 30px;
    background-color: #4d5964;
    color: #ffff;
    border-radius: 0 8px 8px 0;
}
.button{
    margin-top: 25px;
    text-align: center;
}
.button button{
    border: none;
    outline: none;
    padding: 10px 30px;
    font-size: 20px;
    border-radius: 3px;
    font-weight: 600;
    cursor: pointer;
    transition: 0.3s;
}
.button button:hover{
    background: #000;
    color: #fff;
}