* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: montserrat, san-serif;
}

.button-container {
    display: flex;
    width: 100%;
    min-height: 100vh;
    justify-content: center;
    align-items: center;
}

.button{
    appearance: none;
    background: none;
    border: none;
    outline:none;
    cursor: pointer;

    padding: 20px 40px;
    border-radius: 8px;
    color: #212121;
    font-size: 28px;
    font-weight: 600;
    margin: 0 15px;
    transition: 0.4s;
}

.button-1{
    color:#FFCE00;
    border:3px solid #FFCE00;


}

.button-1:hover{
    color:azure;
    background-color: #FFCE00;
}


.button-2{
    color: blue;
    border: 3px solid blue;
    background-image: linear-gradient(to right, transparent 50%, blue 50%);
    background-size: 200%;
    background-position: 0%;


}
.button-2:hover{
    color:white;
    background-position: 100%;
}


.button-3{
    color: pink;
    border: 3px solid pink;
    background-image: linear-gradient(to bottom, transparent 50%, pink 50%);
    background-size: 100% 200%;
    background-position: 0% 0%;
}

.button-3:hover{
    color:white;
    background-position: 0% 100%;
}


.button-4{
    color:#fff;
    background-color: orange;
    box-shadow: inset 0 -8px 0 0 rgba(0,0,0,0.2);
    transition: 0ls;
    text-shadow: 0px 3px rgba(0,0,0,0.2);
}

.button-4:hover{
    box-shadow: inset 0 -6px 0 0 rgba(0,0,0,0.2);

}

.button-4:active{
    box-shadow: 0 -1px 0 0 rgba(0,0,0,0.2);
    text-shadow: 0px 1px rgba(0,0,0,0.2);
}

.button-5{
    position: relative;
}


.button-5 {
    position: relative;
  }
  
  .button-5:after {
    content: '';
    position: absolute;
    width: 0;
    height: 0;
    bottom: 0;
    right: 0;
    border-bottom: 3px solid #212121;
    border-right: 3px solid #212121;
    transition: all 0.4s, opacity 0.1s 0.4s;
    opacity: 0;
  }
  
  .button-5:before {
    content: '';
    position: absolute;
    width: 0;
    height: 0;
    top: 0;
    left: 0;
    border-top: 3px solid #212121;
    border-left: 3px solid #212121;
    transition: all 0.4s, opacity 0.1s 0.4s;
    opacity: 0;
  }
  
  .button-5:hover:after, .button-5:hover:before {
    width: calc(100% + 15px);
    height: calc(100% + 15px);
    transition: all 0.4s, opacity 0.1s;
    opacity: 1;
  }