@import 'https://fonts.googleapis.com/css?family=Open+Sans+Condensed:300';

html,
body {
    width: 100%;
    height: 100%;
    overflow: hidden;
    margin: 0;
    display: flex;
    flex-direction: column;
    flex-wrap: wrap;
    font-family: 'Open Sans Condensed', sans-serif;
}

div[class*=box] {
    height: 33.33%;
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.box-1 {
    background-color: #1D2B53;
}

.box-2 {
    background-color: #86A7FC;
}

.box-3 {
    background-color: #3468C0;
}

.btn {
    line-height: 50px;
    height: 50px;
    text-align: center;
    width: 250px;
    cursor: pointer;
}

/* 
========================
      BUTTON ONE
========================
*/
.btn-one {
    color: #FFFFFF;
    transition: all 0.3s;
    position: relative;
}

.btn-one span {
    transition: all 0.3s;
}

.btn-one::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    opacity: 0;
    transition: all 0.3s;
    border-top-width: 1px;
    border-bottom-width: 1px;
    border-top-style: solid;
    border-bottom-style: solid;
    border-top-color: rgba(255, 255, 255, 0.5);
    border-bottom-color: rgba(255, 255, 255, 0.5);
    transform: scale(0.1, 1);
}

.btn-one:hover span {
    letter-spacing: 2px;
}

.btn-one:hover::before {
    opacity: 1;
    transform: scale(1, 1);
}

.btn-one::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    transition: all 0.3s;
    background-color: rgba(255, 255, 255, 0.1);
}

.btn-one:hover::after {
    opacity: 0;
    transform: scale(0.1, 1);
}


/* 
========================
      BUTTON TWO
========================
*/
.btn-two {
    color: #FFFFFF;
    transition: all 0.5s;
    position: relative;
}

.btn-two span {
    z-index: 2;
    display: block;
    position: absolute;
    width: 100%;
    height: 100%;
}

.btn-two::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    transition: all 0.5s;
    border: 1px solid rgba(255, 255, 255, 0.2);
    background-color: rgba(255, 255, 255, 0.1);
}

.btn-two::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    transition: all 0.5s;
    border: 1px solid rgba(255, 255, 255, 0.2);
    background-color: rgba(255, 255, 255, 0.1);
}

.btn-two:hover::before {
    transform: rotate(-45deg);
    background-color: rgba(255, 255, 255, 0);
}

.btn-two:hover::after {
    transform: rotate(45deg);
    background-color: rgba(255, 255, 255, 0);
}


/* 
========================
      BUTTON THREE
========================
*/
.btn-three {
    color: #FFFFFF;
    transition: all 0.5s;
    position: relative;
}

.btn-three::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    background-color: rgba(255, 255, 255, 0.1);
    transition: all 0.3s;
}

.btn-three:hover::before {
    opacity: 0;
    transform: scale(0.5, 0.5);
}

.btn-three::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    opacity: 0;
    transition: all 0.3s;
    border: 1px solid rgba(255, 255, 255, 0.5);
    transform: scale(1.2, 1.2);
}

.btn-three:hover::after {
    opacity: 1;
    transform: scale(1, 1);
}