@media (min-width: 993px){
    ._triangle-login{
        position: absolute;
        top: calc(50% - 250px);
        left: calc(50% - 200px);
        width: 400px;
        height: 500px;
        color: #444;
    }
}

@media (max-width: 992px){
    ._triangle-login{
        padding-top: 50px;
        overflow: hidden;
        margin-left: 30px;
    }
}

._triangle-login:before{
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    -webkit-transform: rotate(53deg);
        -ms-transform: rotate(53deg);
            transform: rotate(53deg);
    -webkit-transform-origin: top left;
        -ms-transform-origin: top left;
            transform-origin: top left;
    background-color: rgb(189, 238, 246);
    -webkit-box-shadow: 0 0 6px rgba(0,0,0,0.1);
            box-shadow: 0 0 6px rgba(0,0,0,0.1);
}

._triangle-login:after{
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    -webkit-transform: rotate(63deg);
        -ms-transform: rotate(63deg);
            transform: rotate(63deg);
    -webkit-transform-origin: top left;
        -ms-transform-origin: top left;
            transform-origin: top left;
    background-color: rgb(165, 197, 238);
    -webkit-box-shadow: 0 0 6px rgba(0,0,0,0.1);
            box-shadow: 0 0 6px rgba(0,0,0,0.1);
}

._triangle-login-btn{
    position: relative;
    padding: 11px 26px;
    border-radius: 4px;
    border: 1px solid rgba(0,0,0,0.1);
    margin-left: 47px;
    margin-top: 6px;
    background-color: rgba(255,255,255,0.1);
    -webkit-transition: 0.2s;
    -o-transition: 0.2s;
    transition: 0.2s;
}

._triangle-login-btn:hover{
    background-color: rgba(255,255,255,0.2);
}

._triangle-login-btn:before{
    content: "";
    position: absolute;
    right: 0;
    bottom: 0;
}

._triangle-login-z-index-10{
    position: relative;
    z-index: 10;
}

._triangle-login .input-field .prefix.active{
    color: rgba(255,255,255,0.6);
    border-color: #fff;
}

._triangle-login .input-field input{
    border-color: rgba(255,255,255,0.2);
}

._triangle-login input[type=text]:not(.browser-default):focus:not([readonly]),
._triangle-login input[type=password]:not(.browser-default):focus:not([readonly]){
  border-bottom: 1px solid rgba(255,255,255,0.3);
}