Change width modal salesforce

<aura:html tag="style">
   .slds-modal__container{ 
     height : auto; width: 80%; max-width: 70vh; 
   } 
   .modal-body{ 
     height : 40vh !important; 
     max-height: 40vh !important; 
   } 
   .slds-modal__footer{ 
     display: inline !important; 
   }
</aura:html>